tf.math.sign

Returns an element-wise indication of the sign of a number.

View aliases

Main aliases

tf.sign

Compat aliases for migration

See Migration guide for more details.

tf.compat.v1.math.sign, tf.compat.v1.sign, `tf.compat.v2.math.sign`, `tf.compat.v2.sign`

tf.math.sign(
    x, name=None
)

y = sign(x) = -1 if x < 0; 0 if x == 0; 1 if x > 0.

For complex numbers, y = sign(x) = x / |x| if x != 0, otherwise y = 0.

Args
x	A Tensor. Must be one of the following types: bfloat16, half, float32, float64, int32, int64, complex64, complex128.
name	A name for the operation (optional).

Returns
A Tensor. Has the same type as x. If x is a SparseTensor, returns SparseTensor(x.indices, tf.math.sign(x.values, ...), x.dense_shape)