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Question: "already assigned to outputvariable" and "already assigned to statevariable"

Question:"already assigned to outputvariable" and "already assigned to statevariable"

nm 12368 Maple 2023
dynamicsystems
June 09 2023
1

How can one set their own symbols for DynamicSystems continuoustimevar?  If I try to use DynamicSystems:-SystemOptions('continuoustimevar'=x): or DynamicSystems:-SystemOptions('continuoustimevar'=y): Maple complains that these letters are already assigned. Why can not one have their own choice of which letters to use?  Is there a workaround?


 

858904

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interface(version);

`Standard Worksheet Interface, Maple 2023.0, Windows 10, March 6 2023 Build ID 1689885`

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restart;

858904

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DynamicSystems:-SystemOptions('continuoustimevar'=t):
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restart;

858904

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DynamicSystems:-SystemOptions('continuoustimevar'=x):

Error, (in DynamicSystems:-SystemOptions) cannot assign x to continuoustimevar, already assigned to statevariable

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restart;

858904

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DynamicSystems:-SystemOptions('continuoustimevar'=y):

Error, (in DynamicSystems:-SystemOptions) cannot assign y to continuoustimevar, already assigned to outputvariable

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restart;

858904

> 

DynamicSystems:-SystemOptions('continuoustimevar'=XXXXXX):
> 

 


 

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