Floating-point Intrinsics

The following table lists and describes floating point intrinsics that you can use across all Intel and compatible architectures. Floating-point intrinsic functions may invoke library functions that are more highly optimized for Intel® microprocessors than for non-Intel microprocessors.

Intrinsic	Description
double fabs(double)	Returns the absolute value of a floating-point value.
double log(double)	Returns the natural logarithm ln(x), x>0, with double precison.
float logf(float)	Returns the natural logarithm ln(x), x>0, with single precison.
double log10(double)	Returns the base 10 logarithm log10(x), x>0, with double precison.
float log10f(float)	Returns the base 10 logarithm log10(x), x>0, with single precison.
double exp(double)	Returns the exponential function with double precison.
float expf(float)	Returns the exponential function with single precison.
double pow(double, double)	Returns the value of x to the power y with double precison.
float powf(float, float)	Returns the value of x to the power y with single precison.
double sin(double)	Returns the sine of x with double precison.
float sinf(float)	Returns the sine of x with single precison.
double cos(double)	Returns the cosine of x with double precison.
float cosf(float)	Returns the cosine of x with single precison.
double tan(double)	Returns the tangent of x with double precison.
float tanf(float)	Returns the tangent of x with single precison.
double acos(double)	Returns the inverse cosine of x with double precison
float acosf(float)	Returns the inverse cosine of x with single precison
double acosh(double)	Compute the inverse hyperbolic cosine of the argument with double precison.
float acoshf(float)	Compute the inverse hyperbolic cosine of the argument with single precison.
double asin(double)	Compute inverse sine of the argument with double precison.
float asinf(float)	Compute inverse sine of the argument with single precison.
double asinh(double)	Compute inverse hyperbolic sine of the argument with double precison.
float asinhf(float)	Compute inverse hyperbolic sine of the argument with single precison.
double atan(double)	Compute inverse tangent of the argument with double precison.
float atanf(float)	Compute inverse tangent of the argument with single precison.
double atanh(double)	Compute inverse hyperbolic tangent of the argument with double precison.
float atanhf(float)	Compute inverse hyperbolic tangent of the argument with single precison.
double cabs(double complex z)	Computes absolute value of complex number. The intrinsic argument is a complex number made up of two double precison elements, one real and one imaginary. The input parameter z is made up of two values of double type passed together as a single argument.
float cabsf(float complex z)	Computes absolute value of complex number. The intrinsic argument is a complex number made up of two single precison elements, one real and one imaginary. The input parameter z is made up of two values of float type passed together as a single argument.
double ceil(double)	Computes smallest integral value of double precison argument not less than the argument.
float ceilf(float)	Computes smallest integral value of single precison argument not less than the argument.
double cosh(double)	Computes the hyperbolic cosine of double precison argument.
float coshf(float)	Computes the hyperbolic cosine of single precison argument.
float fabsf(float)	Computes absolute value of single precison argument.
double floor(double)	Computes the largest integral value of the double precison argument not greater than the argument.
float floorf(float)	Computes the largest integral value of the single precison argument not greater than the argument.
double fmod(double)	Computes the floating-point remainder of the division of the first argument by the second argument with double precison.
float fmodf(float)	Computes the floating-point remainder of the division of the first argument by the second argument with single precison.
double hypot(double, double)	Computes the length of the hypotenuse of a right angled triangle with double precison.
float hypotf(float, float)	Computes the length of the hypotenuse of a right angled triangle with single precison.
double rint(double)	Computes the integral value represented as double using the IEEE rounding mode.
float rintf(float)	Computes the integral value represented with single precison using the IEEE rounding mode.
double sinh(double)	Computes the hyperbolic sine of the double precison argument.
float sinhf(float)	Computes the hyperbolic sine of the single precison argument.
float sqrtf(float)	Computes the square root of the single precison argument.
double tanh(double)	Computes the hyperbolic tangent of the double precison argument.
float tanhf(float)	Computes the hyperbolic tangent of the single precison argument.