Fix cast

theano/scalar/basic.py

@@ -2050,14 +2050,14 @@ class Deg2Rad(UnaryScalarOp):
         if gz.type in complex_types:
             raise NotImplementedError()
         if x.type in float_types:
-            return gz * numpy.pi / 180,
+            return gz * numpy.asarray(numpy.pi / 180, gz.type),
         else:
             return None,
 
     def c_code(self, node, name, (x,), (z,), sub):
         if node.inputs[0].type in complex_types:
             raise NotImplementedError('type not supported', type)
-        return "%(z)s = %(x)s * M_PI / 180.0;" % locals()
+        return "%(z)s = %(x)s * (M_PI / 180.0);" % locals()
 deg2rad = Deg2Rad(upgrade_to_float, name='deg2rad')
 
 
@@ -2069,14 +2069,14 @@ class Rad2Deg(UnaryScalarOp):
         if gz.type in complex_types:
             raise NotImplementedError()
         if x.type in float_types:
-            return gz * 180. / numpy.pi,
+            return gz * numpy.asarray(180. / numpy.pi, gz.type),
         else:
             return None,
 
     def c_code(self, node, name, (x,), (z,), sub):
         if node.inputs[0].type in complex_types:
             raise NotImplementedError('type not supported', type)
-        return "%(z)s = %(x)s * 180.0 / M_PI;" % locals()
+        return "%(z)s = %(x)s * (180.0 / M_PI);" % locals()
 rad2deg = Rad2Deg(upgrade_to_float, name='rad2deg')
 
 

theano/tensor/basic.py

@@ -2580,7 +2580,7 @@ def exp2(a):
 
 @_scal_elemwise_with_nfunc('expm1', 1, 1)
 def expm1(a):
-    """e^`a - 1`"""
+    """e^`a` - 1"""
 
 
 @_scal_elemwise_with_nfunc('negative', 1, 1)

theano/tensor/tests/test_basic.py

@@ -1057,29 +1057,38 @@ _good_broadcast_unary_wide = dict(
     empty=(numpy.asarray([]),),)
 _grad_broadcast_unary_wide = dict(normal=(rand_ranged(-1000, 1000, (2, 3)),),)
 
+if theano.config.floatX == 'float32':
+    angle_eps = 1e-4
+else:
+    angle_eps = 1e-10
+
 Deg2RadTester = makeBroadcastTester(
     op=tensor.deg2rad,
     expected=numpy.deg2rad,
     good=_good_broadcast_unary_normal_no_complex,
-    grad=_grad_broadcast_unary_normal_no_complex)
+    grad=_grad_broadcast_unary_normal_no_complex,
+    eps=angle_eps)
 Deg2RadInplaceTester = makeBroadcastTester(
     op=inplace.deg2rad_inplace,
     expected=numpy.deg2rad,
     good=_good_broadcast_unary_normal_no_complex,
     grad=_grad_broadcast_unary_normal_no_complex,
-    inplace=True)
+    inplace=True,
+    eps=angle_eps)
 
 Rad2DegTester = makeBroadcastTester(
     op=tensor.rad2deg,
     expected=numpy.rad2deg,
     good=_good_broadcast_unary_normal_no_complex,
-    grad=_grad_broadcast_unary_normal_no_complex)
+    grad=_grad_broadcast_unary_normal_no_complex,
+    eps=angle_eps)
 Rad2DegInplaceTester = makeBroadcastTester(
     op=inplace.rad2deg_inplace,
     expected=numpy.rad2deg,
     good=_good_broadcast_unary_normal_no_complex,
     grad=_grad_broadcast_unary_normal_no_complex,
-    inplace=True)
+    inplace=True,
+    eps=angle_eps)
 
 SinTester = makeBroadcastTester(op=tensor.sin,
                                 expected=numpy.sin,