module
Math
v2_5_5 -
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The Math module contains module functions for basic trigonometric and transcendental functions. See class Float for a list of constants that define Ruby’s floating point accuracy.
Domains and codomains are given only for real (not complex) numbers.
Constants
E = DBL2NUM(M_E)
PI = DBL2NUM(M_PI)
Files
- math.c
1Note
Input for trigonometric functions must be radians
You must use radians to have the right result. For example to compute the sin of 125 degrees use:
Math.sin(125*Math::PI/180)