@mmcdara Sir..i'm sorry...i will show the exact equation...please check this ..and i want to plot ( sigma,epislon) from t= 1..100

@mmcdara Sir..i have variable (e) in this problem...is there possible to plot (a,e)..with different value of (t)
by the way (a) is streess and (e) is strain and (t) is time...i want to plot stress and strain over time

plot.mw