What is the purpose of the exp function in C++?

The exp function in C++ is used to calculate the exponential of the natural logarithm, which is e raised to the power of x. Its function prototype is:

double exp(double x);

In this case, x represents the value for which the exponent is being calculated. The exp function returns the value of e raised to the power of x, mathematically represented as e^x.

For example, calling exp(1.0) will return the value of e to the power of 1, which is approximately 2.71828. The exp function is commonly used in mathematical and scientific calculations to calculate exponential growth or decay.

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