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.\" Copyright (c) 2025 Bruce Hill
.\" All rights reserved.
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.TH Num.copysign 3 2025-11-29 "Tomo man-pages"
.SH NAME
Num.copysign \- copy a number's sign
.SH LIBRARY
Tomo Standard Library
.SH SYNOPSIS
.nf
.BI Num.copysign\ :\ func(x:\ Num,\ y:\ Num\ ->\ Num)
.fi
.SH DESCRIPTION
Copies the sign of one number to another.


.SH ARGUMENTS

.TS
allbox;
lb lb lbx
l l l.
Name	Type	Description
x	Num	The number whose magnitude will be copied. 
y	Num	The number whose sign will be copied. 
.TE
.SH RETURN
A number with the magnitude of `x` and the sign of `y`.

.SH EXAMPLES
.EX
assert (3.0).copysign(-1) == -3
.EE
.SH SEE ALSO
.BR Tomo-Num (3)