How to express the nth power of a in C language

In C language, the pow() function is used to calculate the nth power of a. The base a needs to be used as base and the exponent n needs to be passed to the function as exponent. For example, to calculate 2 raised to the 5th power, call pow(2, 5).

The nth power of a in C language

In C language, use the pow() function to calculate a to the nth power. The prototype of this function is:

double pow(double base, double exponent);

where:

• base: base a
• exponent: exponent n

To calculate a To the power n, you simply pass a as the base and n as the exponent to the pow() function. For example:

#include  #include  int main() { // 计算 2 的 5 次方 double result = pow(2, 5); // 输出结果 printf("2 的 5 次方是 %f\n", result); return 0; }

Output:

2 的 5 次方是 32.000000

Note:

##pow() function returns a double type value.
• If exponent is negative, the function will return NaN (not a number).
• If base is 0 and exponent is negative, this function will return infinity.

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