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Simtel MSDOS - Coast to Coast
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SIGN.(X)
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1993-11-14
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166b
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12 lines
# library sign.(x)
sign(0) := 0
sign(zero) := 1
sign(-zero) := -1
sign(e) := 1
sign(pi) := 1
sign(inf) := 1
sign(-inf) := -1
sign(x_) := if(x>0, 1, -1)