Recent content by rezaborhani

when you want to obtain the response of a system to a input while you have the response to a sine function you could expand input function using Fourier series and by superposition law obtain the response to the input function.

Hi The order is depending on the problem you're solving, for example in partial differential equations with boundary values you must use the order of your differential equation that you have obtain to expand the boundary functions.

Hi The order is depending on the problem you're solving, for example in partial differential equations with boundary values you must use the order of your differential equation that you have obtain to expand the boundary functions.