Merge pull request #35005 from geetachavan1/cherrypicks_3SVHU

[r2.1:Cherrypick] Expose ndtri and erfinv under tf.math.ndtri and tf.math.erfinv.

tensorflow/core/api_def/python_api/api_def_Erfinv.pbtxt

+op {
+  graph_op_name: "Erfinv"
+  visibility: HIDDEN
+}

tensorflow/core/api_def/python_api/api_def_Ndtri.pbtxt

+op {
+  graph_op_name: "Ndtri"
+  visibility: HIDDEN
+}

tensorflow/python/ops/math_ops.py

@@ -109,6 +109,7 @@ arg_min = deprecation.deprecated(None, "Use `tf.math.argmin` instead")(arg_min)
 tf_export(v1=["arg_max"])(arg_max)
 tf_export(v1=["arg_min"])(arg_min)
 
+
 # This is set by resource_variable_ops.py. It is included in this way since
 # there is a circular dependency between math_ops and resource_variable_ops
 _resource_variable_type = None
@@ -4187,3 +4188,36 @@ def reciprocal_no_nan(x, name=None):
     x = ops.convert_to_tensor(x, name="x")
     one = constant_op.constant(1, dtype=x.dtype.base_dtype, name="one")
     return gen_math_ops.div_no_nan(one, x, name=scope)
+
+
+@tf_export("math.erfinv")
+@dispatch.add_dispatch_support
+def erfinv(x, name=None):
+  """Compute inverse error function.
+
+  Given `x`, compute the inverse error function of `x`. This function
+  is the inverse of `tf.math.erf`.
+
+  Args:
+    x: `Tensor` with type `float` or `double`.
+    name: A name for the operation (optional).
+  Returns:
+    Inverse error function of `x`.
+  """
+  with ops.name_scope(name, "erfinv", [x]):
+    return gen_math_ops.erfinv(x)
+
+
+@tf_export("math.ndtri")
+@dispatch.add_dispatch_support
+def ndtri(x, name=None):
+  """Compute quantile of Standard Normal.
+
+  Args:
+    x: `Tensor` with type `float` or `double`.
+    name: A name for the operation (optional).
+  Returns:
+    Inverse error function of `x`.
+  """
+  with ops.name_scope(name, "ndtri", [x]):
+    return gen_math_ops.ndtri(x)

tensorflow/tools/api/golden/v1/tensorflow.math.pbtxt

@@ -140,6 +140,10 @@ tf_module {
     name: "erfc"
     argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
   }
+  member_method {
+    name: "erfinv"
+    argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
+  }
   member_method {
     name: "exp"
     argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
@@ -280,6 +284,10 @@ tf_module {
     name: "multiply_no_nan"
     argspec: "args=[\'x\', \'y\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
   }
+  member_method {
+    name: "ndtri"
+    argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
+  }
   member_method {
     name: "negative"
     argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "

tensorflow/tools/api/golden/v1/tensorflow.pbtxt

@@ -1236,10 +1236,6 @@ tf_module {
     name: "erfc"
     argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
   }
-  member_method {
-    name: "erfinv"
-    argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
-  }
   member_method {
     name: "executing_eagerly"
     argspec: "args=[], varargs=None, keywords=None, defaults=None"
@@ -1716,10 +1712,6 @@ tf_module {
     name: "multiply"
     argspec: "args=[\'x\', \'y\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
   }
-  member_method {
-    name: "ndtri"
-    argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
-  }
   member_method {
     name: "negative"
     argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "

tensorflow/tools/api/golden/v2/tensorflow.math.pbtxt

@@ -140,6 +140,10 @@ tf_module {
     name: "erfc"
     argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
   }
+  member_method {
+    name: "erfinv"
+    argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
+  }
   member_method {
     name: "exp"
     argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
@@ -280,6 +284,10 @@ tf_module {
     name: "multiply_no_nan"
     argspec: "args=[\'x\', \'y\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
   }
+  member_method {
+    name: "ndtri"
+    argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
+  }
   member_method {
     name: "negative"
     argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "

tensorflow/tools/api/golden/v2/tensorflow.pbtxt

@@ -624,10 +624,6 @@ tf_module {
     name: "equal"
     argspec: "args=[\'x\', \'y\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
   }
-  member_method {
-    name: "erfinv"
-    argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
-  }
   member_method {
     name: "executing_eagerly"
     argspec: "args=[], varargs=None, keywords=None, defaults=None"
@@ -812,10 +808,6 @@ tf_module {
     name: "multiply"
     argspec: "args=[\'x\', \'y\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
   }
-  member_method {
-    name: "ndtri"
-    argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "
-  }
   member_method {
     name: "negative"
     argspec: "args=[\'x\', \'name\'], varargs=None, keywords=None, defaults=[\'None\'], "