modeling-app/docs/kcl-std/functions/std-math-log.md

title, subtitle, excerpt, layout

title	subtitle	excerpt	layout
log	Function in std::math	Compute the logarithm of the number with respect to an arbitrary base.	manual

Compute the logarithm of the number with respect to an arbitrary base.

exampleSketch = startSketchOn(XZ)
  |> startProfile(at = [0, 0])
  |> line(end = [log(100, base = 5), 0])
  |> line(end = [5, 8])
  |> line(end = [-10, 0])
  |> close()

example = extrude(exampleSketch, length = 5)

Arguments

Name	Type	Description	Required
input	number	The number to compute the logarithm of.	Yes
base	number(_)	The base of the logarithm.	Yes

Returns

number - A number.

Description

The result might not be correctly rounded owing to implementation details; log2 can produce more accurate results for base 2, and log10 can produce more accurate results for base 10.

Function signature

log(
  @input: number,
  base: number(_),
): number

Examples

exampleSketch = startSketchOn(XZ)
  |> startProfile(at = [0, 0])
  |> line(end = [log(100, base = 5), 0])
  |> line(end = [5, 8])
  |> line(end = [-10, 0])
  |> close()

example = extrude(exampleSketch, length = 5)