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-rw-r--r--ext/bigdecimal/lib/bigdecimal/jacobian.rb2
1 files changed, 2 insertions, 0 deletions
diff --git a/ext/bigdecimal/lib/bigdecimal/jacobian.rb b/ext/bigdecimal/lib/bigdecimal/jacobian.rb
index 8d8d583..e4420df 100644
--- a/ext/bigdecimal/lib/bigdecimal/jacobian.rb
+++ b/ext/bigdecimal/lib/bigdecimal/jacobian.rb
@@ -21,6 +21,8 @@
# fx is f.values(x).
#
module Jacobian
+ module_function
+
#--
def isEqual(a,b,zero=0.0,e=1.0e-8)
aa = a.abs