math – Mathematical operation function

This module implements the corresponding CPython A subset of modules, as described below. See CPython Document for details:math.

This math module provides some basic mathematical functions for dealing with float numbers. Note: at pyboard，Float numbers have 32-bit accuracy.

Functions

math.acos(x)

returns arccosine value x.

math.acosh(x)

returns inverse hyperbolic cosine value x.

math.asin(x)

R arcsine returned x.

math.asinh(x)

inverse hyperbolic sine returned x.

math.atan(x)

returns inverse tangent x.

math.atan2(y, x)

returns main value of arctangent y/x.

math.atanh(x)

returns inverse hyperbolic tangent x.

math.ceil(x)

returns an integer， x Round to positive infinity.

math.copysign(x, y)

return x to the symbol of y .

math.cos(x)

returns cosine x.

math.cosh(x)

returns hyperbolic cosine value x.

math.degrees(x)

returns radian x convert to degrees.

math.erf(x)

returns error function x

math.erfc(x)

returns complementary error function x.

math.exp(x)

returns exponent x.

math.expm1(x)

returns exp(x) - 1.

math.fabs(x)

returns absolute value x.

math.floor(x)

Returns an integer， x Round to negative infinity.

math.fmod(x, y)

Returned to the rest x/y.

math.frexp(x)

The float number is disintegrate into mantissa and exponent. The returned value is tuple (m, e) as such x == m * 2**e absolutely right. If x == 0 ，then the function returns (0.0,0) ，if not 0.5 <= abs(m) < 1 .

math.gamma(x)

returns Gamma function x.

math.isfinite(x)

In case x is limited, then return True.

math.isinf(x)

In case x is unlimited, then return True.

math.isnan(x)

In case x not digital, then return True.

math.ldexp(x, exp)

returns x * (2**exp).

math.lgamma(x)

returns the natural logarithm of gamma function x.

math.log(x)

returns the natural logarithm x.

math.log10(x)

returns the logarithm of base 10 x.

math.log2(x)

returns the logarithm of base 2 x.

math.modf(x)

returns a tuple of two float numbers, it’s a fraction of a number and an integral part of it `` x`` . Both return values have the same symbol x .

math.pow(x, y)

returns y the power of ``x `` .

math.radians(x)

returns x convert degrees to radians.

math.sin(x)

returns sine x.

math.sinh(x)

returns hyperbola sine x.

math.sqrt(x)

returns square root x.

math.tan(x)

returns tangent value x.

math.tanh(x)

returns hyperbolic tangent x.

math.trunc(x)

returns an integer, x round to 0.

Constants

math.e

tThe base of natural logarithm

math.pi

Ratio of circumference to diameter