Add first gradient tests

a990017b · Philipp Arras · 0d1d2f31 · a990017b
Commit a990017b authored Jul 31, 2019 by Philipp Arras
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nifty5/linearization.py nifty5/linearization.py +1 -1

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--- a/nifty5/linearization.py
+++ b/nifty5/linearization.py
@@ -319,7 +319,7 @@ class Linearization(object):

    def sinc(self):
        tmp = self._val.sinc()
-        tmp2 = (self._val.cos()-tmp)/self._val
+        tmp2 = ((np.pi*self._val).cos()-tmp)/self._val
        ind = self._val.local_data == 0
        loc = tmp2.local_data.copy()
        loc[ind] = 0