Python Math module:
Using Math module in python, we can access to different mathematical functions already defined by the C standard . “math” module functions cannot use with complex numbers. For complex numbers, another module known as “cmath” (link) is available.
To use this module , we need to include “import math” for that program. e.g. :
import math
print math.piFollowing are the functions provided by math module :
ceil(x) ,return smallest integer value greater than or equal to x
copysign(x,y) , returns x with the sign of y . e.g. copysign(1.0, -2.0) returns -1.0
fabs(x) : returns absolute value of x
factorial(x) : returns x factorial .If x is not integral or negative, it throws an error.
floor(x) : returns the largest integer value less than or equal to x
fmod(x,y) : returns reminder when x is divided by y
frexp(x) : Return the mantissa and exponent of x as the pair (m, e). m is a float and e is an integer such that x == m * 2**e
fsum(iterable) : Return an accurate floating point sum of values in the iterable.
isinf(x) : Checks if the float x is positive or negative infinity.
isnan(x) : checks if the float x is NaN ( Not a number )
ldexp(x,i) : return x * (2**i). This is essentially the inverse of function frexp().
modf(x) : returns the factional and integer parts of x.
trunc(x) : returns the truncated int value of xPower and logerithmic functions :
exp(x) : returns e**x
expm1(x) : returns e**x - 1
log(x[, base]) : returns the logarithm of x to the base ( default base is e )
log1p(x) : return the natural logarithm of 1+x (base e).
log10(x) : return the base-10 logarithm of x
pow(x,y) : return x raised to the power y
sqrt(x) : return the square root of xTrigonometric functions :
acos(x) : return the arc cosine of x in radians
asin(x) : return the arc sine of x in radians
atan(x) : return the arc tangent of x in radians
atan2(y,x) : Returns atan(y / x)
cos(x) : returns the cosine of x
hypot(x, y) : Return the Euclidean norm, sqrt(x*x + y*y).
sin(x) : return the sine of x radians
tan(x) : return the tangent of x radiansAngular Conversion :
degrees(x) : Converts angle x from radians to degrees
radians(x) : Converts angle x from degrees to radiansHyperbolic functions:
acosh(x) : Returns the inverse hyperbolic cosine of x
asinh(x) : Returns the inverse hyperbolic sine of x
atanh(x) : Returns the inverse hyperbolic tangent of x
cosh(x) : Returns the hyperbolic cosine of x
sinh(x) : Returns the hyperbolic cosine of x
tanh(x) : Returns the hyperbolic tangent of xSpecial Functions :
erf(x) : Returns the error function at x
erfc(x) : Returns the complementary error function at x
gamma(x) : Returns the Gamma function at x
lgamma(x) : Returns the natural logarithm of the absolute value of the Gamma function at xConstants :
pi: Mathematical constant to available precision (3.14159...)
e : mathematical constant e to available precision (2.71828...)