Rectangle Approximation Method vs Integral
See the difference between Riemann Sums and Integrals.
Input the function f(x)
set the width of the graph you want to calculate (interval start -> interval end)
Set the number of rectangles you want for the Riemann sum (rectangle approximation method)
g=0 is LRAM
g=0.5 is MRAM
g=1 is RRAM