EntityQ215193· pop 34· linked from 242 articlesfloor and ceiling functionsSign in to savefunctions of a real returning respectively the largest smaller and the smallest larger integerConnectionsEuler's numberEntityEnglish languageConceptmathematicsEntityCarl Friedrich GaussEntityPiConceptInternational Standard Book NumberEntityQ15777EntityPHPEntityPythonEntitynatural numberEntityJavaEntitycomplex numberEntityprime numberEntityQ2407EntityintegerEntityfunctionEntityreal numberEntityWayback MachineEntityQ2370EntitySrinivasa RamanujanEntityCategoriesMathematical notationSpecial functionsUnary operations