Why an error in Mathcad 15

[ValeryOchkov]

Why an error in Mathcad 15?

One simple ODE! I have converted in Prime 4 - no problems! See please pictures and sheets

[ValeryOchkov]

No problem in Mathcad 11 too

[Werner_E · Accepted solution]

You have used a wrong syntax!

The syntax for OdeSolve is different in Prime and real Mathcad.

Correct is: alpha := Odesolve (t, t.end)

Replace alpha by t and I guess it will work OK.

EDIT: Just see your follow up. In MC11 you can see the correct syntax!

[ValeryOchkov]

Thanks, Werner!

Ich hab fergessen!

Prime can work here with units but does not have an animations!

Нет в жизеи счастья!