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'\" t
.\" Copyright (c) 2025 Bruce Hill
.\" All rights reserved.
.\"
.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)
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