Subjects/Calculus II/Left, right, and midpoint sums/Formula11.1. Left, right, and midpoint sumsFormulaIn 11.1. Left, right, and midpoint sumsFormulaCopy LaTeXRn=Δxi=1∑nf(xi)VariablesxVariable independiente (variable de integración)nExponente o índice enterofFunción integrandoRelated formulasRelatedFormulaLn=Δxi=0∑n−1f(xi)Open formulaOpen in sectionRelatedFormulaMn=Δxi=1∑nf(2xi−1+xi)Open formulaOpen in section