-x vs -1 * x

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f = -x x = 2 doesn't yield f = -2 because -x != -1 * x in the current version. x and -x are considered as two different variables

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wip simple lines like f = -x would work fine when x = 2, for example, but there are still errors in the following case

expr->name: -1 y a 4 + -1 y b 2 + y c 1

removed expr:

symbols: "f" = "a x^2 + b x^1 + c x^0" "g" = "y f" "h" = "-1 * g" "x" = "2"

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this error is from distExpr.

-1 (a + b + c) ==> -1 a + -1 * b + c

working on the issue now

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problem

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resolved