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How to express nth power in c++

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There are two ways to express nth power in C: 1. pow() function; 2. ^ operator. The pow() function is located in the header file, and the ^ operator has higher precedence than * and /, but lower than and -.

How to express nth power in c++

Power operation in C

How to express nth power in C?

There are two ways to express nth power in C:

1. Use the pow() function

<code class="cpp">#include <cmath>

double result = pow(base, exponent);</code>

where:

  • base is the base.
  • exponent is the exponent.
  • result is the result.

2. Use ^ operator

<code class="cpp">double result = base ^ exponent;</code>

Example:

Calculate 2 5th power:

  • Use pow() Function:

    <code class="cpp">#include <cmath>
    
    double result = pow(2, 5);</code>
  • Use ^ Operator:

    <code class="cpp">double result = 2 ^ 5;</code>

Note:

  • ##^ operator has higher priority than * and /, but lower than and -. Therefore, you need to be careful when using the ^ operator. The
  • pow() function is a function in the standard library, and the
  • ^ operator is a form of C operator overloading.

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