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Werner_E
Werner_EAnswer
25-Diamond I
Jul 7, 2022 12:32 AM UTC

You have to write S1:=F1(10,10) and NOT S1(u):=F1(10,10)

Werner_E_0-1657153915172.png

 

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4 replies

Werner_E
Werner_E25-Diamond I
25-Diamond I
Jul 6, 2022 4:43 PM UTC

Two errors:

1) you define a function Theta(...) in front of the solve block, but use an unknown function Thetatest(...) in the solve block equation

2) wrong syntax for odesolve (the function name Phi is NOT an argument of odesolve)

Werner_E_0-1657125759905.png

BTW, your "manual" calculations" below the solve block fail because they use a function Thetatest with just two arguments which isn't defined anywhere.

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JohnRudnicki15-MoonstoneAuthor
15-Moonstone
Jul 6, 2022 10:29 PM UTC

Thanks, but, sorry ----I posted the wrong worksheet. I corrected those errors you pointed out, but I still get an error when I try to plot the solution using Theta specialized to equal Thetatest. I have posted the correct worksheet this time.

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Werner_E
Werner_E25-Diamond IAnswer
25-Diamond I
Jul 7, 2022 12:32 AM UTC

You have to write S1:=F1(10,10) and NOT S1(u):=F1(10,10)

Werner_E_0-1657153915172.png

 

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