exp10

Return the value of 10 raised to the power of x.

Interface Definition

C interface:

float exp10f(float x);

double exp10(double x);

long double exp10l(long double x);

Parameters

Parameter	Type	Description	Input/Output
x	For exp10f, x is of single-precision floating-point type. For exp10, x is of double-precision floating-point type. For exp10l, x is of long double-precision floating-point type.	Floating-point value of the input data.	Input

Return Value

The result y of 10 raised to the power of x is returned. y ∈ (0, +INF)
If the input is +0, the return value is +1.
If the input is -0, the return value is +1.
If the input of exp10f is greater than 0x1.344135p5 (about 38.53), the return value is +∞. If the input of exp10 is greater than or equal to 0x1p9 (512), the return value is +∞.
If the input of exp10f is less than -0x1.693c6ap5 (about -45.15), the return value is +0. If the input of exp10 is less than or equal to -0x1p9 (-512), the return value is +0.
If the input is +∞, the return value is +∞.
If the input is -∞, the return value is +0.
If the input is NaN, the return value is NaN.

Dependency

C: "km.h"

Example

C interface:

    // typical usage 
    double x1 = 1.0, x2 = 2.0;
    double a = 0.0, b = INFINITY, c = -INFINITY, d = NAN, e = 1024.0; 
    // print result 
    printf("exp10(1.0) = %.15f\n", exp10(x1)); 
    printf("exp10(2.0) = %.15f\n", exp10(x2)); 
    printf("exp10(1024.0) = %.15f\n", exp10(e)); 
    printf("exp10(0.0) = %.15f\n", exp10(a)); 
    printf("exp10(INFINITY) = %.15f\n", exp10(b)); 
    printf("exp10(-INFINITY) = %.15f\n", exp10(c)); 
    printf("exp10(NAN) = %.15f\n", exp10(d)); 
    /* 
     *  exp10(1.0) = 10.000000000000000 
     *  exp10(2.0) = 100.000000000000000 
     *  exp10(1024.0) = inf 
     *  exp10(0.0) = 1.000000000000000 
     *  exp10(INFINITY) = inf 
     *  exp10(-INFINITY) = 0.000000000000000 
     *  exp10(NAN) = nan 
     * 
     * */

Parent topic: Exponential and Logarithmic Functions