https://lecursos.com/en-us/en/feed.rssen-us (Le Cursos)©2022 Le CursosCourses for bussiness technicianhttps://cdn.cardsrealm.com/images/logos/le-cursos.pnghttps://cdn.cardsrealm.com/images/logos/le-cursos.png 27955https://lecursos.com/en-us/articles/lead-time-reorder-points-and-safety-stockWhen to reorder and how much extra inventory to keep: reorder points, service levels using the z-score, and safety stock when demand and lead times are uncertain.Fri, 30 Oct 2026 14:20:38 GMTLogistic and Supply ChainLe Cursos 27954https://lecursos.com/en-us/articles/economic-order-quantity-eoq-how-much-to-order-at-onceWhere the economic order quantity formula comes from, why it holds up when the input data is imperfect, and how to decide what to order when a supplier offers quantity discounts.Fri, 30 Oct 2026 14:20:34 GMTLogistic and Supply ChainLe Cursos 27933https://lecursos.com/en-us/articles/inventory-costs-purchasing-ordering-holding-and-stockoutsWhat does it cost to keep inventory—and to run out? Learn how to estimate purchasing, ordering, holding and stockout costs, and how they add up.Fri, 30 Oct 2026 14:20:28 GMTLogistic and Supply ChainLe Cursos 27932https://lecursos.com/en-us/articles/demand-forecasting-weighted-averages-exponential-smoothing-and-least-squaresLearn how to forecast demand by giving more weight to recent data, using exponential smoothing to adjust for errors, and identifying trends with a least-squares line.Fri, 30 Oct 2026 14:20:22 GMTLogistic and Supply ChainLe Cursos 27931https://lecursos.com/en-us/articles/demand-forecasting-the-last-period-method-and-moving-averagesForecast horizons, demand components, seasonality indices, the last-period method, simple moving averages, and how to measure error using mean absolute deviation (MAD).Fri, 30 Oct 2026 14:20:17 GMTLogistic and Supply ChainLe Cursos 27930https://lecursos.com/en-us/articles/types-of-inventory-and-how-to-classify-materialsRaw materials, work in progress, finished goods, MRO, cycle stock, safety stock and seasonal stock: the types of inventory and how to classify materials, including consumables and durable goods.Fri, 30 Oct 2026 14:20:11 GMTLogistic and Supply ChainLe Cursos 27924https://lecursos.com/en-us/articles/inventory-policy-service-levels-turnover-and-days-of-supplyLearn how to set an inventory policy and measure it using service levels, inventory accuracy, turnover, days of supply and return on capital, with worked examples.Fri, 30 Oct 2026 14:20:04 GMTLogistic and Supply ChainLe Cursos 22029https://lecursos.com/en-us/articles/partner-media-kit-what-to-prepare-before-promoting-your-brandA practical guide to creating a promotional kit (an advertiser media kit) for brands to share with podcasts, channels, influencers, and partners: visual identity, key messaging, ad scripts, image, video, and audio specifications, trackable links, usage guidelines, and logisticsMon, 12 Oct 2026 19:50:05 GMTSpecial TopicsLe Cursos 21099https://lecursos.com/en-us/articles/how-to-find-the-real-problem-before-building-the-solutionLearn to distinguish real pain points from imagined ones, identify who feels the pain, who makes the decisions and who pays, and ask the right questions in five conversations before spending a month working on the wrong side of the project.Fri, 21 Aug 2026 21:30:10 GMTSpecial TopicsLe Cursos 20965https://lecursos.com/en-us/articles/futures-pricing-and-hedging-in-practice-dollar-index-and-diThe course’s final lesson covers how to price futures contracts using cost of carry, interest rate parity in dollar futures, the futures DI PU and basis convergence, while building the three classic hedges used in the Brazilian market.Thu, 20 Aug 2026 20:45:16 GMTFinancial ManagementLe Cursos 20964https://lecursos.com/en-us/articles/derivatives-and-futures-markets-how-they-work-daily-settlement-and-margin-requirementsThis lesson introduces derivatives, explaining what they are and what they are used for (hedging, speculation and arbitrage), the differences between forward and futures contracts, the standardization and central counterparty of B3, and how daily settlement works through a day-by-day example.Thu, 20 Aug 2026 20:45:05 GMTLeCursosLe Cursos 20963https://lecursos.com/en-us/articles/portfolio-theory-and-capm-the-efficient-frontier-beta-and-the-price-of-riskThis lesson wraps up the equities module by introducing Markowitz's efficient frontier, beta as a measure of systematic risk, and CAPM — the formula that turns risk into a discount rate (k), alongside the Security Market Line, the concept of alpha, worked examples, a discussion case, and exercises.Thu, 20 Aug 2026 20:40:21 GMTLeCursosLe Cursos 20962https://lecursos.com/en-us/articles/risk-and-return-volatility-correlation-and-the-power-of-diversificationThis lesson formalizes the concept of risk in finance: expected return, variance and standard deviation (volatility), the role of correlation in combining assets, the effect of diversification on portfolio risk, and the distinction between systematic and unsystematic risk, with worked numerical examplesThu, 20 Aug 2026 20:40:05 GMTLeCursosLe Cursos 20946https://lecursos.com/en-us/articles/stock-valuation-the-gordon-growth-model-and-multiples-analysisLearn how to estimate a stock’s value using two complementary approaches: the Gordon discounted dividend model (a growing perpetuity, the k > g condition, and sensitivity analysis) and market multiples (P/E, P/BV, and dividend yield), including when each method works and where it falls short.Thu, 20 Aug 2026 19:30:05 GMTLeCursosLe Cursos 20887https://lecursos.com/en-us/articles/equities-the-stock-market-b3-share-classes-and-payoutsThis lesson opens the equities module by explaining the shift from creditor to shareholder, the differences between common and preferred shares, tag-along rights, primary and secondary markets, the Ibovespa, shareholder payouts (dividends, JCP and bonus shares), stock splits and reverse splits, cum and ex dates, and the new taxThu, 20 Aug 2026 11:30:05 GMTFinancial ManagementLe Cursos 20746https://lecursos.com/en-us/articles/fixed-income-risk-a-roadmap-of-portfolio-risks-and-strategiesThe lesson wraps up the fixed-income section by mapping out the five risks investors face—market, credit, liquidity, reinvestment and inflation—explaining the difference between mark-to-market and mark-to-curve accounting, and presenting the three classic portfolio strategies (bullet, barbell and ladder), with comparçTue, 18 Aug 2026 20:25:04 GMTLeCursosLe Cursos 20734https://lecursos.com/en-us/articles/duration-and-convexity-measuring-bonds-sensitivity-to-interest-ratesLesson explains Macaulay duration as the weighted average timing of cash flows, modified duration as a measure of price sensitivity to rate changes, the factors that determine it, the role of convexity in correcting the linear estimate, and immunization strategies, with solved examples passTue, 18 Aug 2026 19:20:15 GMTFinancial ManagementLe Cursos 20733https://lecursos.com/en-us/articles/private-fixed-income-cdbs-debentures-fgc-and-the-tax-rules-that-change-the-gameThis lesson covers the main private fixed-income securities — CDBs, LCIs, LCAs and debentures — explaining credit risk and its premium (spread), FGC coverage, the types of collateral backing debentures, incentivized debentures and the regressive income tax schedule, including how to calculate rate equivalenceTue, 18 Aug 2026 19:20:04 GMTFinancial ManagementLe Cursos 20732https://lecursos.com/en-us/articles/floating-rate-and-inflation-linked-bonds-lft-tesouro-selic-and-tesouro-ipca+-ntn-bLesson on pricing floating-rate and hybrid government bonds: how the VNA works, the premium and discount on LFT (Tesouro Selic), the real interest rate of Tesouro IPCA+ (NTN-B), the Fisher equation, and a comparison of market risk among the three Treasury securities, with worked examples and exercises.Tue, 18 Aug 2026 19:15:04 GMTFinancial ManagementLe Cursos 20700https://lecursos.com/en-us/articles/pricing-fixed-rate-bonds-the-math-behind-brazils-treasury-fixed-rate-bond-ltnThis lesson explains how to calculate the price of fixed-rate government bonds (LTN/Tesouro Prefixado) using the 252-business-day convention. It demonstrates the inverse relationship between price and yield, mark-to-market valuation, and the effects of selling before maturity, with worked examples and exercises.Tue, 18 Aug 2026 16:50:04 GMTFinancial ManagementLe Cursos 20670https://lecursos.com/en-us/articles/brazilian-interest-rates-selic-cdi-and-the-yield-curveThis lesson introduces the main concepts behind interest rates in Brazil's financial markets, focusing on the Selic rate and the CDI, and their role in shaping the economy's borrowing and investment conditions. It discusses the differences between the main rates.Tue, 18 Aug 2026 12:30:06 GMTFinancial ManagementLe Cursos 20669https://lecursos.com/en-us/articles/the-financial-system-and-markets-an-overview-of-players-and-asset-typesThis lesson provides an overview of the financial system and its role in the economy, covering the main participants in financial markets and their functions. It discusses different types of markets, including credit, capital, foreign exchange and derivaTue, 18 Aug 2026 12:25:26 GMTFinancial ManagementLe Cursos 20411https://lecursos.com/en-us/articles/how-to-create-mind-maps-for-your-projectLearn how to create effective mind maps to organize ideas, plan stages, stimulate creativity and improve productivity in your project, with practical tips, useful tools and inspiring examples.Sat, 15 Aug 2026 17:05:04 GMTSpecial TopicsLe Cursos 17964https://lecursos.com/en-us/articles/what-is-payback-and-discounted-paybackHow to calculate Simple and Discounted Payback, with worked examples, the partial-period formula, differences, limitations and exercises.Wed, 22 Jul 2026 18:00:12 GMTFinancial mathLe Cursos 17963https://lecursos.com/en-us/articles/about-modified-internal-rate-of-return-tirmWhat MIRR is, how to calculate it with financing and reinvestment rates, and why it is more realistic than IRR. Worked examples and exercises.Wed, 22 Jul 2026 18:00:04 GMTFinancial mathLe Cursos 17835https://lecursos.com/en-us/articles/knowing-how-to-spend-is-more-important-than-knowing-how-to-investBetween 15 and 25, spending up to 10,000 reais well on mobility, courses and tools can be worth more than choosing where to invest.Wed, 15 Jul 2026 02:20:48 GMTFinancial mathLe Cursos 17834https://lecursos.com/en-us/articles/analyzing-your-business-with-irr-and-npv-using-excelVideo on building an Excel spreadsheet of your business to calculate IRR and NPV, with a short summary of both concepts.Wed, 15 Jul 2026 02:20:41 GMTFinancial mathLe Cursos 17833https://lecursos.com/en-us/articles/the-financial-decision-and-the-companyThe financial manager's three decisions, the split between treasury and controllership, and short- and long-term sources of financing.Wed, 15 Jul 2026 02:20:33 GMTFinancial mathLe Cursos 17832https://lecursos.com/en-us/articles/french-system-and-american-system-of-loansThe Price table (French system) and the American system: building the schedule, finding the outstanding balance and comparing interest with SAC.Wed, 15 Jul 2026 02:20:25 GMTFinancial mathLe Cursos 17831https://lecursos.com/en-us/articles/loans-and-how-repayment-worksA loan period by period: outstanding balance, interest, amortization, installment and the constant amortization system (SAC).Wed, 15 Jul 2026 02:20:18 GMTFinancial mathLe Cursos 17830https://lecursos.com/en-us/articles/deferred-uniform-sequences-and-their-amountsHow to find the present value of payments with a grace period and the future value of equal monthly deposits, with retirement examples.Wed, 15 Jul 2026 02:20:10 GMTFinancial mathLe Cursos 17829https://lecursos.com/en-us/articles/uniform-sequences-in-financial-transactionsHow a geometric progression leads to the present value formula of a uniform sequence, with examples of cash price, installment, down payment and IRR.Wed, 15 Jul 2026 02:20:02 GMTFinancial mathLe Cursos 17828https://lecursos.com/en-us/articles/how-to-calculate-the-internal-rate-of-return-irrWhat the IRR is, how to find it without a calculator by trial and linear interpolation, and how to use it to decide on an investment. With exercises.Tue, 14 Jul 2026 19:07:23 GMTFinancial mathLe Cursos 17827https://lecursos.com/en-us/articles/present-value-moving-money-over-timeHow to bring future amounts to today: equivalent amounts, the present value of several installments and how to choose the best way to pay.Tue, 14 Jul 2026 19:07:11 GMTFinancial mathLe Cursos 17825https://lecursos.com/en-us/articles/inflation-measures-what-they-are-and-how-to-calculate-themWhat money and inflation are, how to calculate a price index and a cumulative rate, and who calculates Brazil's IPCA, INPC, IGP-M and IPC.Tue, 14 Jul 2026 19:07:00 GMTFinancial mathLe Cursos 17824https://lecursos.com/en-us/articles/sustainability-report-environmental-social-and-governance-asgWhat an ESG sustainability report is, its environmental, social and governance pillars, the GRI and ISSB standards and Brazil's CVM rule in 2026.Tue, 14 Jul 2026 19:06:49 GMTAccountingLe Cursos 17823https://lecursos.com/en-us/articles/demonstration-of-added-value-dva-reportWhat the Brazilian DVA is, who must publish it, and how wealth is shared among staff, government, lenders and shareholders, with a Petrobras example.Tue, 14 Jul 2026 19:06:38 GMTAccountingLe Cursos 17815https://lecursos.com/en-us/articles/statement-of-changes-in-net-equity-dmplWhat the Brazilian DMPL is, who must prepare it, how to read its columns and what it reveals about dividends, buybacks and OCI, with a Petrobras example.Tue, 14 Jul 2026 01:50:05 GMTAccountingLe Cursos 17814https://lecursos.com/en-us/articles/about-the-comprehensive-income-statementWhat the Statement of Comprehensive Income (DRA, CPC 26) is, what goes into other comprehensive income, what is recycled, and Petrobras's example.Tue, 14 Jul 2026 01:45:31 GMTAccountingLe Cursos 17813https://lecursos.com/en-us/articles/pj-vs-clt-advantages-and-disadvantages-in-the-brazilian-labor-marketPJ or CLT? Compare FGTS, vacation, 13th salary, INSS and taxes under Brazil's 2026 rules, with a R$ 10,000 example of which pays off at each salary level.Tue, 14 Jul 2026 01:45:23 GMTAccountingLe Cursos 17812https://lecursos.com/en-us/articles/cooperative-companies-what-they-are-and-how-they-are-formedWhat a cooperative is, how to form one under Brazil's Law 5,764/71, surplus, mandatory funds, pros and cons, and examples such as Capal and Sicredi.Tue, 14 Jul 2026 01:45:14 GMTAccountingLe Cursos 17811https://lecursos.com/en-us/articles/what-are-micro-and-small-companies-for-accountingME, EPP and MEI limits in 2026, Simples Nacional, Brazil's tax reform, pros and cons, and what LC 123/2006 says about microenterprises.Tue, 14 Jul 2026 01:45:06 GMTAccountingLe Cursos 17809https://lecursos.com/en-us/articles/what-are-oscip-civil-society-organization-of-public-interestWhat an OSCIP is in Brazil, how an entity qualifies under Law 9,790/99, how it differs from an OS and an OSC (MROSC), and its pros and cons.Tue, 14 Jul 2026 01:31:47 GMTAccountingLe Cursos 17808https://lecursos.com/en-us/articles/cash-flow-indicators-what-we-should-pay-attention-toCash flow statement ratios: interest, debt and dividend coverage, quality of earnings, capital expenditure and returns, with the Vale and CEMIG example.Tue, 14 Jul 2026 01:31:39 GMTAccountingLe Cursos 17807https://lecursos.com/en-us/articles/how-to-calculate-the-working-capital-reserveA guide to calculating working capital, net working capital, working capital needs and the cash conversion cycle, with examples and exercises.Tue, 14 Jul 2026 01:31:32 GMTAccountingLe Cursos 17806https://lecursos.com/en-us/articles/the-types-of-cash-flow-and-how-to-do-it-in-practiceTypes of cash flow (operating, free, projected, discounted) and how to prepare the cash flow statement by the direct and indirect methods.Tue, 14 Jul 2026 01:31:24 GMTAccountingLe Cursos 17805https://lecursos.com/en-us/articles/the-use-of-cash-flow-in-financial-managementHow cash flow supports management: operating, investing and financing decisions, the operating cycle and solved exercises.Tue, 14 Jul 2026 01:31:16 GMTAccountingLe Cursos 17804https://lecursos.com/en-us/articles/differences-between-cash-flow-dfc-and-income-statement-dreThe income statement shows profit on the accrual basis; the cash flow statement shows the money that came in and went out. See the difference.Tue, 14 Jul 2026 01:31:08 GMTAccountingLe Cursos 17803https://lecursos.com/en-us/articles/main-indicators-in-the-income-statement-dreGross, operating, EBITDA and net margins, ROI, ROE and asset turnover: how to calculate and interpret income statement ratios, with an example.Tue, 14 Jul 2026 01:31:00 GMTAccountingLe Cursos 17802https://lecursos.com/en-us/articles/types-of-provisions-in-companies-and-their-calculationsProvisions, contingent liabilities, credit losses, warranties, vacation pay, 13th salary and charges: what a real provision is and how to calculate it.Tue, 14 Jul 2026 01:30:52 GMTAccountingLe Cursos 17801https://lecursos.com/en-us/articles/the-structure-of-the-income-statement-dreThe order of the lines of the Brazilian income statement (DRE) under Law 6,404/76 and CPC 26, from gross revenue to net income, with examples.Tue, 14 Jul 2026 01:30:44 GMTAccountingLe Cursos 17800https://lecursos.com/en-us/articles/main-taxes-and-how-they-appear-in-the-balance-sheet-and-dreBrazil's federal, state and municipal taxes in 2026, the tax reform (CBS, IBS and IS) and how each tax is posted on the Balance Sheet and the DRE.Tue, 14 Jul 2026 01:30:36 GMTAccountingLe Cursos 17799https://lecursos.com/en-us/articles/depreciation-and-adjustments-to-the-balance-sheetFair value, present value adjustment, equity valuation adjustments and depreciation: how each one is calculated and posted on the Balance Sheet.Tue, 14 Jul 2026 01:30:29 GMTAccountingLe Cursos 17798https://lecursos.com/en-us/articles/dre-vs-balance-sheet-differences-and-when-to-use-each-oneThe balance sheet and the DRE (the Brazilian income statement): the DRE structure, how the two are linked and when to use each one.Tue, 14 Jul 2026 01:30:21 GMTAccountingLe Cursos 17797https://lecursos.com/en-us/articles/all-balance-sheet-items-and-real-examples-with-b3Balance sheet groups and accounts under Brazil's current Corporate Law and how to find real balance sheets of listed companies on B3, with Vale as an example.Tue, 14 Jul 2026 01:30:13 GMTAccountingLe Cursos 17796https://lecursos.com/en-us/articles/vertical-and-horizontal-analysis-and-indices-in-the-balance-sheetHow to perform horizontal and vertical analysis and calculate liquidity, debt and capital structure ratios, with worked examples and exercises.Tue, 14 Jul 2026 01:30:05 GMTAccountingLe Cursos 17795https://lecursos.com/en-us/articles/balance-sheet-in-the-accounting-system-transactions-and-accountingHow each transaction changes Assets = Liabilities + Equity, with debits and credits, the resulting balance sheet and the four types of adjusting entry.Tue, 14 Jul 2026 01:30:04 GMTAccountingLe Cursos 17794https://lecursos.com/en-us/articles/the-accounting-cycle-its-stages-and-bookkeepingThe five stages of the accounting cycle — capture, recognition, accumulation, summarisation and disclosure —, chart of accounts, books and statements.Tue, 14 Jul 2026 01:29:57 GMTAccountingLe Cursos 17793https://lecursos.com/en-us/articles/credit-and-debit-financial-transactions-with-ledgers-and-balance-sheetsA debit is where resources went; a credit, where they came from. Learn T-accounts, double entry and the trial balance.Tue, 14 Jul 2026 01:29:49 GMTAccountingLe Cursos 17792https://lecursos.com/en-us/articles/basic-accounting-concepts-fundamentals-and-accounting-heritageProperty, goods, rights and obligations, cash and accrual bases, accounting principles and the accounting equation, with solved exercises.Tue, 14 Jul 2026 01:29:41 GMTAccountingLe Cursos 17791https://lecursos.com/en-us/articles/the-emergence-of-accounting-its-history-and-human-developmentFrom Mesopotamian clay tokens to Pacioli's double entry, Brazil's Law 6,404/76 and IFRS: how Accounting was born and evolved to this day.Tue, 14 Jul 2026 01:29:33 GMTAccountingLe Cursos 17790https://lecursos.com/en-us/articles/guide-to-a-perfect-marketing-campaign-strategy-and-structureDiscover best practices and tips for creating an effective marketing campaign in this comprehensive guide, with insights into innovative strategies and the importance of proper structure.Tue, 14 Jul 2026 01:29:26 GMTSpecial TopicsLe Cursos 17789https://lecursos.com/en-us/articles/how-to-put-together-your-companys-brand-manualIf you're looking to create a brand manual for your company, this article will guide you step by step, providing tips and practical examples to ensure a consistent and impactful visual identity.Tue, 14 Jul 2026 01:29:18 GMTSpecial TopicsLe Cursos 17788https://lecursos.com/en-us/articles/choosing-the-color-palette-for-your-businessThis article presents practical tips on color psychology and design trends, guiding you to create an impactful visual identity that highlights and strengthens your brand's presence.Tue, 14 Jul 2026 01:29:10 GMTSpecial TopicsLe Cursos 17787https://lecursos.com/en-us/articles/sales-funnel-how-to-set-one-up-and-its-stagesToday we will understand how the purchasing stages work and how they influence the assembly of the sales funnel in a businessTue, 14 Jul 2026 01:29:02 GMTSpecial TopicsLe Cursos 17786https://lecursos.com/en-us/articles/the-big-idea-learning-how-to-sell-your-productIf you want people to want to buy your products before you have the opportunity to actually try to sell your stuff, then you're in the right place.Tue, 14 Jul 2026 01:28:55 GMTSpecial TopicsLe Cursos 17785https://lecursos.com/en-us/articles/scrumagile-framework-helping-to-develop-productsScrum is a lightweight framework that helps people, teams and organizations generate value through adaptive solutions to complex problems.Tue, 14 Jul 2026 01:28:47 GMTSpecial TopicsLe Cursos 17784https://lecursos.com/en-us/articles/waterfall-cascade-model-in-project-managementThe simplest way to manage projects is to use the Waterfall framework. Let's see how it separates your project to make it easier to execute!Tue, 14 Jul 2026 01:28:39 GMTSpecial TopicsLe Cursos 17783https://lecursos.com/en-us/articles/mathematical-modeling-logistic-regression-in-excelHere you will dive into the world of mathematical modeling using Logistic regression in Excel. Learn how to analyze data and make predictions with this powerful tool.Tue, 14 Jul 2026 01:28:31 GMTAdvanced ComputingLe Cursos 17782https://lecursos.com/en-us/articles/mathematical-modeling-linear-regression-in-excelHere dive into the world of mathematical modeling using linear regression in Excel. Learn how to analyze data and make predictions with this powerful tool.Tue, 14 Jul 2026 01:28:24 GMTAdvanced ComputingLe Cursos 17781https://lecursos.com/en-us/articles/optimizing-solver-problems-in-excelIn this class, we will learn how to use Solver in Excel to solve optimization problems, which involve finding the best result for a given situation. Solver is especially useful in function maximization or minimization problems, common in areas such as logistics, finance and operations.Tue, 14 Jul 2026 01:28:16 GMTAdvanced ComputingLe Cursos 17780https://lecursos.com/en-us/articles/macros-in-google-sheets-customizable-functionsIn the last module we saw several Excel or Google Spreadsheet functions. Let's see in this module what we should do when there are no functions to help us.Tue, 14 Jul 2026 01:28:09 GMTAdvanced ComputingLe Cursos 17779https://lecursos.com/en-us/articles/extra-programming-list-in-excel-1-3More exercises to improve your knowledge in Excel or Google SheetsTue, 14 Jul 2026 01:27:57 GMTAdvanced ComputingLe Cursos 17778https://lecursos.com/en-us/articles/search-functions-the-pivot-table-in-excel-or-spreadsheetsThe pivot table in Excel automates everything we have learned to date with just a few clicksTue, 14 Jul 2026 01:27:49 GMTAdvanced ComputingLe Cursos 17777https://lecursos.com/en-us/articles/search-functions-vlookup-or-vlookup-and-hlookup-or-hlookupNow we will see new types of functions in Excel or Spreadsheets: search functions! Such as VLOOKUP or VLOOKUP and HLOOKUP or HLOOKUPTue, 14 Jul 2026 01:27:42 GMTAdvanced ComputingLe Cursos 17776https://lecursos.com/en-us/articles/search-functions-rank-index-+-match-or-index-+-matchCould there be a better way to search than VLOOKUP? Discover the combination of the INDEX function with MATCH in Excel or spreadsheets!Tue, 14 Jul 2026 01:27:34 GMTAdvanced ComputingLe Cursos 17774https://lecursos.com/en-us/articles/search-functions-filters-offset-and-index-indexIn this class we will see how to reduce your database in Excel or spreadsheets so that we can only use what we wantTue, 14 Jul 2026 01:27:26 GMTAdvanced ComputingLe Cursos 17773https://lecursos.com/en-us/articles/working-with-text-in-excel-how-to-extract-and-replace-wordsLearn effective techniques for working with text in Excel, from extracting specific words to efficiently replacing them. Improve your Excel skills and increase your productivity with these practical tips.Tue, 14 Jul 2026 01:27:19 GMTAdvanced ComputingLe Cursos 17772https://lecursos.com/en-us/articles/time-functions-in-excel-how-to-work-with-datesDiscover Excel's essential tools for dealing with dates, learn how to use time functions in an effective and simplified way, and master the art of controlling calendars and deadlines.Tue, 14 Jul 2026 01:27:11 GMTAdvanced ComputingLe Cursos 17771https://lecursos.com/en-us/articles/conditional-functions-countuniqueif-and-averageifLet's continue looking at Excel formulas, now let's try to understand COUNTIFUNIQUEIF and AVERAGEIFTue, 14 Jul 2026 01:27:04 GMTAdvanced ComputingLe Cursos 17770https://lecursos.com/en-us/articles/conditional-functions-sumif-or-sumif-and-countif-or-countifLet's continue looking at Excel formulas, now let's try to understand SUMIF or SUMIF, COUNTIF or COUNTIFTue, 14 Jul 2026 01:26:56 GMTAdvanced ComputingLe Cursos 17769https://lecursos.com/en-us/articles/basic-and-essential-excel-functions-sum-average-maximum-minimum-and-moreDiscover how to use fundamental Excel functions, such as Sum, Average, Maximum and Minimum, to optimize your spreadsheets and increase your productivity. Learn useful tips and practical examples.Tue, 14 Jul 2026 01:26:48 GMTAdvanced ComputingLe Cursos 17768https://lecursos.com/en-us/articles/logical-or-conditional-functions-in-excel-or-spreadsheets-and-or-and-ifIn the first class of Advanced Computing 2, we will see the Excel formulas "OR" and "AND" and how they are applied within other functions such as IFTue, 14 Jul 2026 01:26:41 GMTAdvanced ComputingLe Cursos 17767https://lecursos.com/en-us/articles/getting-started-in-excel-or-spreadsheets-first-if-functionLet's get to know our first function in Excel! The IF function and what we can do with itTue, 14 Jul 2026 01:26:33 GMTAdvanced ComputingLe Cursos 17766https://lecursos.com/en-us/articles/getting-started-in-excel-or-spreadsheets-arithmetic-operators-and-signWithin each Excel cell we can perform different calculations. Let's start by looking at what we can do with arithmetic and reference operationsTue, 14 Jul 2026 01:26:26 GMTAdvanced ComputingLe Cursos 17765https://lecursos.com/en-us/articles/getting-started-in-excel-or-spreadsheets-its-interfaceLet's switch applications now and see how Microsoft Excel or Google Sheets worksTue, 14 Jul 2026 01:26:18 GMTAdvanced ComputingLe Cursos 17764https://lecursos.com/en-us/articles/reviewing-and-commenting-on-text-templatesLet's take examples of templates for your text editor on the internet, let's modify them to your needs and make beautiful work out of themTue, 14 Jul 2026 01:26:11 GMTAdvanced ComputingLe Cursos 17763https://lecursos.com/en-us/articles/inserting-header-table-of-contents-bullets-and-figures-in-wordAdvancing our knowledge of Word a little further, today we will analyze how to insert necessary elements into texts in the documentTue, 14 Jul 2026 01:26:03 GMTAdvanced ComputingLe Cursos 17762https://lecursos.com/en-us/articles/text-editing-using-applications-such-as-microsoft-wordMicrosoft Word, Google documents, LibreOffice Writer are programs used for editing and laying out texts. Today we will see how to get started with them.Tue, 14 Jul 2026 01:25:51 GMTAdvanced ComputingLe Cursos 17761https://lecursos.com/en-us/articles/your-computer-it-and-applicationsIn a world full of Windows, Apple and Linux we need to adapt and understand how programs workTue, 14 Jul 2026 01:25:43 GMTAdvanced ComputingLe Cursos 17760https://lecursos.com/en-us/articles/calculating-probabilities-with-scipy-in-pythonUse scipy.stats in Python with real data: normality test, standard-deviation outliers, confidence interval and sample size, step by step.Tue, 14 Jul 2026 01:25:36 GMTStatisticLe Cursos 17759https://lecursos.com/en-us/articles/different-tails-in-hypothesis-testingLeft- and right-tailed tests and two-tailed tests: how to choose the tail, build the critical region and decide, with worked examples and exercises.Tue, 14 Jul 2026 01:25:28 GMTStatisticLe Cursos 17758https://lecursos.com/en-us/articles/hypothesis-testing-and-its-types-of-errorsType I and type II errors in hypothesis testing, with a worked example: null hypothesis, α, β, power, significance level, one- and two-tailed tests.Tue, 14 Jul 2026 01:25:20 GMTStatisticLe Cursos 17757https://lecursos.com/en-us/articles/calculating-the-perfect-sample-size-for-your-researchHow to calculate the sample size to estimate a mean or a proportion: the formula n = (zσ/E)², what to do without σ, examples and exercises with answers.Tue, 14 Jul 2026 01:25:13 GMTStatisticLe Cursos 17756https://lecursos.com/en-us/articles/how-to-do-regression-with-statsmodels-in-pythonLinear regression, ARIMA and multivariate regression with Statsmodels in Python, using real stock data: how to read the output and test the forecast.Tue, 14 Jul 2026 01:25:05 GMTStatisticLe Cursos 17755https://lecursos.com/en-us/articles/multivariate-regression-and-its-problemsMultiple linear regression: computing the coefficients with matrices and the problems of multicollinearity, overfitting, missing data and outliers.Mon, 13 Jul 2026 20:05:18 GMTStatisticLe Cursos 17754https://lecursos.com/en-us/articles/regression-models-over-time-arima-and-time-seriesUnderstand the AR, I and MA components, ARIMA(p,d,q) notation, a step-by-step forecast, statsmodels code and exercises with an answer key.Mon, 13 Jul 2026 20:05:05 GMTStatisticLe Cursos 17753https://lecursos.com/en-us/articles/parameters-to-evaluate-a-simple-linear-regression-model-r^2-and-seeHow to evaluate a simple linear regression: residuals, SEE, t-test, confidence interval and R², with a step-by-step worked example and exercises.Mon, 13 Jul 2026 19:55:19 GMTStatisticLe Cursos 17752https://lecursos.com/en-us/articles/statistics-in-python-using-pandas-to-understand-your-distributionUse pandas to compute mean, median, mode, standard deviation, CV, skewness and kurtosis, draw histograms and boxplots, and log-transform data.Mon, 13 Jul 2026 19:55:12 GMTStatisticLe Cursos 17751https://lecursos.com/en-us/articles/statistical-inference-confidence-intervalUnderstand the confidence interval: sampling distribution of the mean, standard error, confidence level, how to calculate and interpret it, with exercises.Mon, 13 Jul 2026 19:55:04 GMTStatisticLe Cursos