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Built-in Functions

Mathematical Functions

Elementary Functions

Log

Usage

• Log[z] gives the natural logarithm of z (logarithm to base ).
• Log[b, z] gives the logarithm to base b.

Notes

• Mathematical function (see Section A.3.10).

• Log gives exact rational number results when possible.

• Log[z] has a branch cut discontinuity in the complex z plane running from

to

.

• See Section 1.1.3 and Section 3.2.7.

• See also: Exp, Power, Arg, MantissaExponent, ProductLog, HarmonicNumber.

• New in Version 1.

Further Examples

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