From 1c8d0c4ef5d4a8a2d2e01c8039308049d33e1b2d Mon Sep 17 00:00:00 2001
From: Denis Chevalier <perso@denischevalier.fr>
Date: Mon, 10 Aug 2026 09:39:23 +0200
Subject: Add assertion to check the maths early on, and fix typos

---
 lib/apply_prefix.typ | 12 ++++++++++++
 lib/assert_aeq.typ   |  3 +++
 2 files changed, 15 insertions(+)
 create mode 100644 lib/apply_prefix.typ
 create mode 100644 lib/assert_aeq.typ

(limited to 'lib')

diff --git a/lib/apply_prefix.typ b/lib/apply_prefix.typ
new file mode 100644
index 0000000..f6bbfb7
--- /dev/null
+++ b/lib/apply_prefix.typ
@@ -0,0 +1,12 @@
+#let apply-prefix(value, prefix) = {
+  if prefix == "tera" { return value * calc.pow(10, 12) }
+  if prefix == "giga" { return value * calc.pow(10, 9) }
+  if prefix == "mega" { return value * calc.pow(10, 6) }
+  if prefix == "kilo" { return value * calc.pow(10, 3) }
+  if prefix == "milli" { return value * calc.pow(10, -3) }
+  if prefix == "micro" { return value * calc.pow(10, -6) }
+  if prefix == "nano" { return value * calc.pow(10, -9) }
+  if prefix == "pico" { return value * calc.pow(10, -12) }
+  if prefix == "femto" { return value * calc.pow(10, -15) }
+  return value
+}
diff --git a/lib/assert_aeq.typ b/lib/assert_aeq.typ
new file mode 100644
index 0000000..70b9e64
--- /dev/null
+++ b/lib/assert_aeq.typ
@@ -0,0 +1,3 @@
+#let assert-aeq(left, right, precision: calc.pow(10, -6)) = {
+  assert(calc.abs(left - right) < precision)
+}
-- 
cgit