Variable pipe doesn't seem to work

var (26.5 KB)
Hello. The variable pipe in grasshopper does not seem to work.
attached file
(7.0.20280.13133, 10/06/2020)

It would be better if you reparameterize your arc and use parameters in range of 0~1.

var (12.5 KB)

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Thanks! seemed odd that there was no red node.
works now.