error in mupad plot

hello all,i write function code in mupad plot but occure error

zaman:=input(zaman)
for n from 0 to 100 do
if n>zaman
then  A:=subs(A0,[A0=2.943])
elif n<=zaman then A:=subs(A0*n/zaman,[A0=2.943])
end_if:
end_for:
A:=plot::Function2d(A,n=0..100)
Error: The argument '101 = 0..100' is unexpected. [plot::Function2d::new]

thanke you for attention