'\" t .\" Copyright (c) 2025 Bruce Hill .\" All rights reserved. .\" .TH Num.2_PI 3 2025-04-30 "Tomo man-pages" .SH NAME Num.2_PI \- 2*pi .SH LIBRARY Tomo Standard Library .SH SYNOPSIS .nf .BI Num.2_PI\ :\ Num .fi .SH DESCRIPTION The constant $2 \times \pi$.