12 lines
323 B
Plaintext
12 lines
323 B
Plaintext
fun abs(a : float) returns (o : float)
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let
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o = if 0.0 <=. a then a else -. a;
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tel
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(* -- Returns 1.0 if input is greater than 0.0,
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-- -1.0 if input is less than 0.0
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-- and 0.0 if input is equal to 0.0 *)
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fun sign(a : float) returns (o : float)
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let
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o = if a >. 0.0 then 1.0 else if 0.0 = a then 0.0 else -. 1.0;
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tel |