EntityQ778099· pop 14· linked from 67 articlesDirichlet integralSign in to saveimproper integral of sin(𝑥)∕𝑥 from 0 to ∞ConnectionsL'Hôpital's ruleEntityLebesgue integrationEntitylist of differentiation rulesEntitypartial fraction decompositionEntitystochastic calculusEntityWeierstrass substitutionEntitydifferentialEntitymathematicsEntityInternational Standard Book NumberEntitycomplex numberEntitymathematical analysisEntitycalculusEntitydigital object identifierEntityintegralEntityderivativeEntityseriesEntitydifferential calculusEntityTaylor seriesEntitycontinuous functionEntityJohann Peter Gustav Lejeune DirichletEntityCategoriesIntegral calculusMathematical physicsSpecial functions