| 1 | initial version |
When you write var("w0, π, D, I") you overwrite the Python name π to point to te symbol SR.var('π') (that some libraries can not handle), while it should point to the symbol SR.var('pi').
Hence, to fix your issue, you have to replace
var("w0, π, D, I")
with
var("w0, D, I")
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