In physics, the (real) period P of a pendulum is defined as P = ((2(L / g)^ )^3/4)(log(L)) where L is the length of the pendulum and g = 9.806 is the acceleration due to gravity. Using C++ code, write a program to compute P, where L is a real number input by a user via the keyboard. Once you receive the final output of P, round up the value and then find the square root of the number.