#if (vangle(vec2, chiral) > 0 | vangle (vec2, chiral) = 0)
vaxis_rotate(vecb, chiral, a2* 2* pi/circum)
else
vaxis_rotate(vecb, chiral, -a2* 2* pi/circum)

and i get
Parse Error: Expected 'numberic expression', undeclared identifier 'vangle'
found instead

And
So I tried declaring a variable
#declare vecra = (vangle(vec1, chiral));
but
Parse Error: Expected 'numberic expression', undeclared identifier 'vangle'
found instead

vangle is a function i can but....

and something about vangle..

let's say if i put vangle (v1,v2) = 60

then will vangle (v2,v1) = 300?
or -60?

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