How to express 10 to the nth power in C language

In C language, there are two ways to express 10 to the nth power: use the pow() function, accept the base and exponent, and return the exponent of the base. Use the shift operator (<<) to shift 1 to the left by the exponent number of places to calculate 10 raised to the power.

How to express 10 to the nth power in C language?

In C language, there are two ways to express 10 to the nth power:

Method 1: Use the pow() function

#include <math.h>

int main() {
  int n = 5;
  double result = pow(10, n);
  printf("10 的 %d 次方是 %lf\n", n, result);
  return 0;
}

Method 2: Use the bit shift operator (<<)

int main() {
  int n = 5;
  int result = 1 << n;
  printf("10 的 %d 次方是 %d\n", n, result);
  return 0;
}

Instructions:

• pow () Function: It accepts two parameters: base and exponent, and returns the result of the base raised to the power of the exponent. For 10 raised to the nth power, the base is 10 and the exponent is n.
• << Operator: It shifts the left operand to the left by the number of digits specified by the right operand. For 10 raised to the nth power, the right operand is n, which shifts 1 to the left by n places, effectively calculating 10 raised to the nth power.

Note:

• Make sure n is a non-negative integer.
• If n is too large, the pow() function may return inf (positive infinity) or nan ( non-numeric).
• For larger n, the bit-shift operator may be more efficient than the pow() function.

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