Unrecognized function or variable 'sims'.

I have this code:

sims y(t)
ode = diff(y)+4*y == exp(-t);
cond = y(0) == 1;
ySol (t) = dsolve (oda, cond)

but when I run it, it says "

unrecognized funtion or variable 'sims'

How can i fix it? help plz

Answer 1

[Davide Masiello]

Hi there.

There are a couple of spelling mistakes in your code. The correct version is

sym y(t)
ode = diff(y)+4*y == exp(-t);
cond = y(0) == 1;
ySol (t) = dsolve (ode, cond)