What does the root sign in c++ represent?

The symbol representing the root sign in C is the sqrt function. Usage: Include the header file. Use sqrt(n) to calculate the square root of the number n, and the result is of double type. For negative numbers, sqrt returns NaN (not a number).

The symbol representing the root in C

In the C programming language, the symbol representing the root is sqrt Function.

Usage Example

To calculate the square root of the number n, you can use the following code:

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

int main() {
    double n = 16;
    double result = sqrt(n);
    return 0;
}</code>

Related Notes

• sqrt The function returns a double value even if the input is an integer.
• For negative numbers, the sqrt function will return a NaN (not a number) value.

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