From 638966ec47b7025b8682b2376a4a231e356190d6 Mon Sep 17 00:00:00 2001
From: Aurelien Jacobs <aurel@gnuage.org>
Date: Sun, 3 Oct 2021 14:44:40 +0200
Subject: [PATCH] =?UTF-8?q?Fix=20undefined=20function:=20'=E2=88=8F'?=
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Without this fix `prod(1,10,n)` works fine, but `∏(1,10,n)`
returns `Undefined function: '∏'.`
---
 kalk/src/lexer.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kalk/src/lexer.rs b/kalk/src/lexer.rs
index 2baa48f..fa0f90c 100644
--- a/kalk/src/lexer.rs
+++ b/kalk/src/lexer.rs
@@ -236,6 +236,7 @@ impl<'a> Lexer<'a> {
 
         let value = match value.as_ref() {
             "Σ" | "∑" => String::from("sum"),
+            "∏" => String::from("prod"),
             "∫" => String::from("integrate"),
             "°" => String::from("deg"),
             _ => value,