tree 65b479b99d7243e9107cd2a4489934d74200a3af
parent a8d4c1fff30542cb45afc03e85cd1f2d451c527e
author MITSUNARI Shigeo <herumi@nifty.com> 1485379931 +0900
committer MITSUNARI Shigeo <herumi@nifty.com> 1485379931 +0900

allow scale == 0 for convenience