# Sum of the series Using an inline function in C++

Sum of the series Using an inline function in C++.

The inline function `T4Tutorials_SERIES(int num)` helps to increase the execution time of a program. The programmer can make a request to the compiler to make the inline function as `inline T4Tutorials_SERIES(int num)`. Making inline means that compiler can replace the function definitions of `inline T4Tutorials_SERIES(int num)` to the place where this function is called `T4Tutorials_SERIES(n);`.
The compiler replaces the definition of inline functions at compile time instead of referring function definition at runtime.

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