math
– mathematical functions¶
This module implements a subset of the corresponding CPython module,
as described below. For more information, refer to the original
CPython documentation: math
.
The math
module provides some basic mathematical functions for
working with floating-point numbers.
Note: On the pyboard, floating-point numbers have 32-bit precision.
Functions¶
- math.acos(x)¶
Return the inverse cosine of
x
.
- math.acosh(x)¶
Return the inverse hyperbolic cosine of
x
.
- math.asin(x)¶
Return the inverse sine of
x
.
- math.asinh(x)¶
Return the inverse hyperbolic sine of
x
.
- math.atan(x)¶
Return the inverse tangent of
x
.
- math.atan2(y, x)¶
Return the principal value of the inverse tangent of
y/x
.
- math.atanh(x)¶
Return the inverse hyperbolic tangent of
x
.
- math.ceil(x)¶
Return an integer, being
x
rounded towards positive infinity.
- math.copysign(x, y)¶
Return
x
with the sign ofy
.
- math.cos(x)¶
Return the cosine of
x
.
- math.cosh(x)¶
Return the hyperbolic cosine of
x
.
- math.degrees(x)¶
Return radians
x
converted to degrees.
- math.erf(x)¶
Return the error function of
x
.
- math.erfc(x)¶
Return the complementary error function of
x
.
- math.exp(x)¶
Return the exponential of
x
.
- math.expm1(x)¶
Return
exp(x) - 1
.
- math.fabs(x)¶
Return the absolute value of
x
.
- math.floor(x)¶
Return an integer, being
x
rounded towards negative infinity.
- math.fmod(x, y)¶
Return the remainder of
x/y
.
- math.frexp(x)¶
Decomposes a floating-point number into its mantissa and exponent. The returned value is the tuple
(m, e)
such thatx == m * 2**e
exactly. Ifx == 0
then the function returns(0.0, 0)
, otherwise the relation0.5 <= abs(m) < 1
holds.
- math.gamma(x)¶
Return the gamma function of
x
.
- math.isfinite(x)¶
Return
True
ifx
is finite.
- math.isinf(x)¶
Return
True
ifx
is infinite.
- math.isnan(x)¶
Return
True
ifx
is not-a-number
- math.ldexp(x, exp)¶
Return
x * (2**exp)
.
- math.lgamma(x)¶
Return the natural logarithm of the gamma function of
x
.
- math.log(x)¶
Return the natural logarithm of
x
.
- math.log10(x)¶
Return the base-10 logarithm of
x
.
- math.log2(x)¶
Return the base-2 logarithm of
x
.
- math.modf(x)¶
Return a tuple of two floats, being the fractional and integral parts of
x
. Both return values have the same sign asx
.
- math.pow(x, y)¶
Returns
x
to the power ofy
.
- math.radians(x)¶
Return degrees
x
converted to radians.
- math.sin(x)¶
Return the sine of
x
.
- math.sinh(x)¶
Return the hyperbolic sine of
x
.
- math.sqrt(x)¶
Return the square root of
x
.
- math.tan(x)¶
Return the tangent of
x
.
- math.tanh(x)¶
Return the hyperbolic tangent of
x
.
- math.trunc(x)¶
Return an integer, being
x
rounded towards 0.
Constants¶
- math.e¶
base of the natural logarithm
- math.pi¶
the ratio of a circle’s circumference to its diameter