Why do I get error when using a simple global variable?
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I get error and it says ''Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters''
global a b t E nu
GP1=(-a/(sqrt(3),-b/(sqrt(3))
GP2=(a/(sqrt(3),-b/(sqrt(3))
GP3=(a/(sqrt(3),b/(sqrt(3))
GP4=(-a/(sqrt(3),b/(sqrt(3))
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Chunru
am 27 Sep. 2022
Not sure what the code is trying to do. However, the error is due to the wrong usage of ( ) rather than global variables.
global a b t E nu
a=1; b=2; t=3; nu=4;
GP1=[-a/sqrt(3),-b/sqrt(3)]
GP2=[a/sqrt(3),-b/sqrt(3)]
GP3=[a/sqrt(3),b/sqrt(3)]
GP4=[-a/sqrt(3),b/sqrt(3)]
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