Example image of eyePlorer eyePlorer map for 'Natural logarithm': E (mathematical constant) Irrational number Logarithm Radix Complex number Exponential function Inverse function Function (mathematics) Group (mathematics) Isomorphism Exponential decay Compound interest Nicholas Mercator Hyperbolic Napierian logarithm Common logarithm BASIC C (programming language) C++ Fortran MATLAB Programming language SAS System Calculator Binary logarithm Decimal Numeral system Derivative Taylor series Calculus Gottfried Leibniz Isaac Newton Pietro Mengoli Integral Mercator series Taylor's theorem Bailey–Borwein–Plouffe formula Antiderivative Chain rule Constant of integration Integration by parts Newton's method Arithmetic-geometric mean Computational complexity theory Continued fraction Generalized continued fraction Complex plane John Napier Principal branch Complex logarithm