The full form of EXP is Exponential function. It’s used on Academic & Science ,Mathematics in Worldwide

Exponential function is defined by EXP(x) = e^x, where e is the constant(approximately 2.718281828).

Exponential functions look somewhat similar to functions you have seen before, in that they involve exponents, but there is a big difference, in that the variable is now the power, rather than the base. Previously, you have dealt with such functions as f(x) = x², where the variable x was the base and the number 2 was the power. In the case of exponentials, however, you will be dealing with functions such as g(x) = 2^x, where the base is the fixed number, and the power is the variable.

Let’s look more closely at the function g(x) = 2^x. To evaluate this function, we operate as usual, picking values of x, plugging them in, and simplifying for the answers. But to evaluate 2^x, we need to remember how exponents work. In particular, we need to remember that negative exponents mean “put the base on the other side of the fraction line”.

So, while positive x-values give us values like these:

exponential function