acos | acos(x) Returns the arccosine of x in radians. | math and cmath |
acosh | acosh(x) Returns the arc hyperbolic cosine of x in radians. | cmath only |
asin | asin(x) Returns the arcsine of x in radians. | math and cmath |
asinh | asinh(x) Returns the arc hyperbolic sine of x in radians. | cmath only |
atan | atan(x) Returns the arctangent of x in radians. | math and cmath |
atanh | atanh(x) Returns the arc hyperbolic tangent of x in radians. | cmath only |
atan2 | atan2(y,x) Like atan(y/x), except that atan2 properly takes into account the signs of both arguments. For example: >>> import math >>> math.atan(-1./-1.) 0.78539816339744828 >>> math.atan2(-1., -1.) -2.3561944901923448 Also, when x equals 0, atan2 returns pi/2, while dividing by x would raise ZeroDivisionError. | math only |
ceil | ceil(x) Returns float(i), where i is the lowest integer such that i >= x. | math only |
cos | cos(x) Returns the cosine of x in radians. | math and cmath |
cosh | cosh(x) Returns the hyperbolic cosine of x in radians. | math and cmath |
e | The mathematical constant e. | math and cmath |
exp | exp(x) Returns e**x. | math and cmath |
fabs | fabs(x) Returns the absolute value of x. | math only |
floor | floor(x) Returns float(i), where i is the highest integer such that i <= x. | math only |
fmod | fmod(x,y) Returns the float r, with the same sign as x, such that r==x-n*y for some integer n, and abs(r)<abs(y). Like x%y, except that, when x and y differ in sign, x%y has the same sign as y, not the same sign as x. | math only |
frexp | frexp(x) Returns a pair (m,e) with the so-called "mantissa" (in fact, the significand) and exponent of x. m is a floating-point number, and e is an integer such that x==m*(2**e) and 0.5<=abs(m)<1, except that frexp(0) returns (0.0,0). | math only |
hypot | hypot(x,y) Returns sqrt(x*x+y*y). | math only |
ldexp | ldexp(x,i) Returns x*(2**i) (i should be an int; if i is a float, i gets truncated, but that situation also produces a warning). | math only |
log | log(x) Returns the natural logarithm of x. | math and cmath |
log10 | log10(x) Returns the base-10 logarithm of x. | math and cmath |
modf | modf(x) Returns a pair (f,i) with fractional and integer parts of x, meaning two floats with the same sign as x such that i==int(i) and x==f+i. | math only |
pi | The mathematical constant π. | math and cmath |
pow | pow(x,y) Returns x**y. | math only |
sin | sin(x) Returns the sine of x in radians. | math and cmath |
sinh | sinh(x) Returns the hyperbolic sine of x in radians. | math and cmath |
sqrt | sqrt(x) Returns the square root of x. | math and cmath |
tan | tan(x) Returns the tangent of x in radians. | math and cmath |
tanh | tanh(x) Returns the hyperbolic tangent of x in radians. | math and cmath |