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-rw-r--r--ext/bigdecimal/lib/bigdecimal/ludcmp.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/ext/bigdecimal/lib/bigdecimal/ludcmp.rb b/ext/bigdecimal/lib/bigdecimal/ludcmp.rb
index e18446d..9b2c3d2 100644
--- a/ext/bigdecimal/lib/bigdecimal/ludcmp.rb
+++ b/ext/bigdecimal/lib/bigdecimal/ludcmp.rb
@@ -2,6 +2,8 @@
# Solves a*x = b for x, using LU decomposition.
#
module LUSolve
+ module_function
+
# Performs LU decomposition of the n by n matrix a.
def ludecomp(a,n,zero=0,one=1)
prec = BigDecimal.limit(nil)