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.\" Copyright (c) 2026 Bruce Hill
.\" All rights reserved.
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.TH Num.is_exact 3 2026-08-27 "Tomo man-pages"
.SH NAME
Num.is_exact \- whether digits capture the value
.SH LIBRARY
Tomo Standard Library
.SH SYNOPSIS
.nf
.BI Num.is_exact\ :\ func(n:\ Num,\ digits:\ Int\ =\ 15\ ->\ Bool)
.fi
.SH DESCRIPTION
Whether the requested number of fractional digits represents a number exactly, rather than rounding it.


.SH ARGUMENTS

.TS
allbox;
lb lb lbx lb
l l l l.
Name	Type	Description	Default
n	Num	The number to check. 	-
digits	Int	The number of fractional digits. 	15
.TE
.SH RETURN
`yes` if `:digits(digits)` is the value itself.

.SH EXAMPLES
.EX
assert (0.25).is_exact(10)
assert not (1./3.).is_exact(10)
.EE
.SH SEE ALSO
.BR Tomo-Num (3)