From 43c59fba759dea5b34c2f81e427348d19fb77c3d Mon Sep 17 00:00:00 2001
From: Thomas Guillermo Albers Raviola <thomas@thomaslabs.org>
Date: Mon, 3 Aug 2026 15:43:00 +0200
Subject: Remove unnecessary `is' in mul_series

---
 series.mac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/series.mac b/series.mac
index 9dd233c..57eb528 100644
--- a/series.mac
+++ b/series.mac
@@ -137,7 +137,7 @@ mul_series(factors, max_order) := block(
   nfactors : length(factors),
 
   /* If there is nothing to multiple, still filter higher terms */
-  if is(nfactors=1) then (
+  if nfactors = 1 then (
     return(__simple_filter(factors[1], max_order))),
 
   /* Allocate stack and table for ranges */
-- 
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