Module float_extras::f64 [] [src]

Functions

copysign

copysign returns a value whose absolute value matches that of x, but whose sign bit matches that of y.

erf

erf returns the error function of x, defined as text erf(x) = 2/sqrt(pi)* integral from 0 to x of exp(-t*t) dt

erfc

erfc returns the complementary error function of x, that is, 1.0 - erf(x).

fdim

fdim returns the positive difference, max(x-y,0), between their arguments.

fma

fma computes x * y + z. The result is rounded as one ternary operation according to the current rounding mode.

fmod

fmod computes the floating-point remainder of dividing x by y. The return value is x - n * y, where n is the quotient of x / y, rounded toward zero to an integer.

frexp

frexp is used to split the number x into a normalized fraction and an exponent which is stored in exp.

ilogb

iligb returns the exponent part of their argument as a signed integer.

ldexp

ldexp returns the result of multiplying the floating-point number x by 2 raised to the power exp.

lgamma

lgamma returns the natural logarithm of the absolute value of the Gamma function.

logb

logb extracts the exponent from the internal floating-point representation of x and return it as a floating-point value.

lround

lround rounds their argument to the nearest integer value, rounding away from zero.

modf

modf breaks the argument x into an integral part and a fractional part, each of which has the same sign as x.

nextafter

nextafter returns the next representable floating-point value following x in the direction of y. If y is less than x, these functions will return the largest representable number less than x.

remainder

remainder compute the remainder of dividing x by y. The return value is x-n*y, where n is the value x / y, rounded to the nearest integer. If the absolute value of x-n*y is 0.5, n is chosen to be even.

remquo

remquo computes the remainder and part of the quotient upon division of x by y.

scalbn

scalbn multiplies their first argument x by FLT_RADIX (probably 2) to the power of exp, that is: text x * FLT_RADIX ** exp

tgamma

tgamma calculates the Gamma function of x.