ref #65: new formula function PRICE

- fix COUPPCD result accuracy issue
- update close spreadsheet example in documentation and README

1 files changed, 1 insertions, 1 deletions

diff --git a/table.go b/table.go
index 620cf20..a6959a4 100644
--- a/table.go
+++ b/table.go
@@ -446,7 +446,7 @@ func (f *File) parseFilterExpression(expression string, tokens []string) ([]int,
 		if re {
 			conditional = 1
 		}
-		expression1, token1, err := f.parseFilterTokens(expression, tokens[0:3])
+		expression1, token1, err := f.parseFilterTokens(expression, tokens[:3])
 		if err != nil {
 			return expressions, t, err
 		}