rexwashburn
1/25/2019 - 10:07 AM

## モジュールのヘルプ参照

``````#!/usr/local/bin/python3.4
# coding:utf-8
import math

print("Content-Type: application/json; charset=UTF-8\r\n")

help(math)

"""
Help on module math:

NAME
math

MODULE REFERENCE
http://docs.python.org/3.4/library/math

The following documentation is automatically generated from the Python
source files.  It may be incomplete, incorrect or include features that
are considered implementation detail and may vary between Python
implementations.  When in doubt, consult the module reference at the
location listed above.

DESCRIPTION
mathematical functions defined by the C standard.

FUNCTIONS
acos(...)
acos(x)

Return the arc cosine (measured in radians) of x.

acosh(...)
acosh(x)

Return the hyperbolic arc cosine (measured in radians) of x.

asin(...)
asin(x)

Return the arc sine (measured in radians) of x.

asinh(...)
asinh(x)

Return the hyperbolic arc sine (measured in radians) of x.

atan(...)
atan(x)

Return the arc tangent (measured in radians) of x.

atan2(...)
atan2(y, x)

Return the arc tangent (measured in radians) of y/x.
Unlike atan(y/x), the signs of both x and y are considered.

atanh(...)
atanh(x)

Return the hyperbolic arc tangent (measured in radians) of x.

ceil(...)
ceil(x)

Return the ceiling of x as an int.
This is the smallest integral value >= x.

copysign(...)
copysign(x, y)

Return a float with the magnitude (absolute value) of x but the sign
of y. On platforms that support signed zeros, copysign(1.0, -0.0)
returns -1.0.

cos(...)
cos(x)

Return the cosine of x (measured in radians).

cosh(...)
cosh(x)

Return the hyperbolic cosine of x.

degrees(...)
degrees(x)

Convert angle x from radians to degrees.

erf(...)
erf(x)

Error function at x.

erfc(...)
erfc(x)

Complementary error function at x.

exp(...)
exp(x)

Return e raised to the power of x.

expm1(...)
expm1(x)

Return exp(x)-1.
This function avoids the loss of precision involved in the direct evaluation of exp(x)-1 for small x.

fabs(...)
fabs(x)

Return the absolute value of the float x.

factorial(...)
factorial(x) -> Integral

Find x!. Raise a ValueError if x is negative or non-integral.

floor(...)
floor(x)

Return the floor of x as an int.
This is the largest integral value <= x.

fmod(...)
fmod(x, y)

Return fmod(x, y), according to platform C.  x % y may differ.

frexp(...)
frexp(x)

Return the mantissa and exponent of x, as pair (m, e).
m is a float and e is an int, such that x = m * 2.**e.
If x is 0, m and e are both 0.  Else 0.5 <= abs(m) < 1.0.

fsum(...)
fsum(iterable)

Return an accurate floating point sum of values in the iterable.
Assumes IEEE-754 floating point arithmetic.

gamma(...)
gamma(x)

Gamma function at x.

hypot(...)
hypot(x, y)

Return the Euclidean distance, sqrt(x*x + y*y).

isfinite(...)
isfinite(x) -> bool

Return True if x is neither an infinity nor a NaN, and False otherwise.

isinf(...)
isinf(x) -> bool

Return True if x is a positive or negative infinity, and False otherwise.

isnan(...)
isnan(x) -> bool

Return True if x is a NaN (not a number), and False otherwise.

ldexp(...)
ldexp(x, i)

Return x * (2**i).

lgamma(...)
lgamma(x)

Natural logarithm of absolute value of Gamma function at x.

log(...)
log(x[, base])

Return the logarithm of x to the given base.
If the base not specified, returns the natural logarithm (base e) of x.

log10(...)
log10(x)

Return the base 10 logarithm of x.

log1p(...)
log1p(x)

Return the natural logarithm of 1+x (base e).
The result is computed in a way which is accurate for x near zero.

log2(...)
log2(x)

Return the base 2 logarithm of x.

modf(...)
modf(x)

Return the fractional and integer parts of x.  Both results carry the sign
of x and are floats.

pow(...)
pow(x, y)

Return x**y (x to the power of y).

Convert angle x from degrees to radians.

sin(...)
sin(x)

Return the sine of x (measured in radians).

sinh(...)
sinh(x)

Return the hyperbolic sine of x.

sqrt(...)
sqrt(x)

Return the square root of x.

tan(...)
tan(x)

Return the tangent of x (measured in radians).

tanh(...)
tanh(x)

Return the hyperbolic tangent of x.

trunc(...)
trunc(x:Real) -> Integral

Truncates x to the nearest Integral toward 0. Uses the __trunc__ magic method.

DATA
e = 2.718281828459045
pi = 3.141592653589793

FILE