help..

Hi,

This could be more of a conceptual question than mathcad probelm...

Here in this file, I have a set of equations representing a feed back model.

According to my what i am expecting with the graphs.. like the N.s/c.s graph. the N.m/C.m graph should also be constant over time without fluctuating over time.. I am not sure what causes this... can any one help me figuring this out?