From 5c10cbc62636b10191b89c1a5d3633097ec76d05 Mon Sep 17 00:00:00 2001
From: tavo-wasd <gustavo@gustavocalvo.xyz>
Date: Thu, 9 Nov 2023 15:18:53 -0600
Subject: [PATCH] CM symbolssssszzzzz

---
 groff/math.tmac | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/groff/math.tmac b/groff/math.tmac
index 9776f25..2ff8ecd 100644
--- a/groff/math.tmac
+++ b/groff/math.tmac
@@ -44,11 +44,34 @@ define arccoth 'roman "arccoth"'
 define arccsch 'roman "arccsch"'
 .EN
 .
-.\" Laplace transform/Lagrangian in U-BMD font
-.char \[letterlikeL] \f[U-BMD]\[u2112]
+.\" SYMBOLS
+.\" To install CM and CMSS:
+.\" wget www.ams.org/arc/tex/amsfonts.zip
+.\" groff-install-font -F CM -f +R cmr12.pfb
+.\" groff-install-font -F CM -f +I cmmi12.pfb
+.\" groff-install-font -F CM -f +B cmbx12.pfb
+.\" groff-install-font -F CM -f +SS eusm10.pfb
+.\" groff-install-font -F CM -f +SE msam10.pfb
+.\" groff-install-font -F CM -f +SB msbm10.pfb
+.\" ---
+.\" Laplace transform/Lagrangian (CMSS or generic URW)
+.\".char \[letterlikeL] \f[U-HR]\[u2112]
+.char \[letterlikeL] \f[CMSS]L
+.\" Blackboard letters (CMSB)
+.char \[blackboardN] \f[CMSB]N
+.char \[blackboardZ] \f[CMSB]Z
+.char \[blackboardQ] \f[CMSB]Q
+.char \[blackboardR] \f[CMSB]R
+.char \[blackboardC] \f[CMSB]C
+.
 .EQ
 define lap '\[letterlikeL]'
 define lag '\[letterlikeL]'
+define NN '\[blackboardN]'
+define ZZ '\[blackboardZ]'
+define RR '\[blackboardR]'
+define QQ '\[blackboardQ]'
+define CC '\[blackboardC]'
 .EN
 .
 .\" From eqn manual, draws a diagonal