tf.math.sign
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Returns an element-wise indication of the sign of a number.
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.
Example usage:
tf.math.sign([0., 2., -3.])
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)
|
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Last updated 2020-10-01 UTC.
[null,null,["Last updated 2020-10-01 UTC."],[],[],null,["# tf.math.sign\n\n\u003cbr /\u003e\n\n|----------------------------------------------------------------------|\n| [TensorFlow 1 version](/versions/r1.15/api_docs/python/tf/math/sign) |\n\nReturns an element-wise indication of the sign of a number.\n\n#### View aliases\n\n\n**Main aliases**\n\n[`tf.sign`](/api_docs/python/tf/math/sign)\n**Compat aliases for migration**\n\nSee\n[Migration guide](https://www.tensorflow.org/guide/migrate) for\nmore details.\n\n[`tf.compat.v1.math.sign`](/api_docs/python/tf/math/sign), [`tf.compat.v1.sign`](/api_docs/python/tf/math/sign)\n\n\u003cbr /\u003e\n\n tf.math.sign(\n x, name=None\n )\n\n`y = sign(x) = -1` if `x \u003c 0`; 0 if `x == 0`; 1 if `x \u003e 0`.\n\nFor complex numbers, `y = sign(x) = x / |x|` if `x != 0`, otherwise `y = 0`.\n\n#### Example usage:\n\n\u003e \u003e \u003e tf.math.sign(\\[0., 2., -3.\\])\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n| Args ---- ||\n|--------|----------------------------------------------------------------------------------------------------------------------------------------|\n| `x` | A `Tensor`. Must be one of the following types: `bfloat16`, `half`, `float32`, `float64`, `int32`, `int64`, `complex64`, `complex128`. |\n| `name` | A name for the operation (optional). |\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n| Returns ------- ||\n|---|---|\n| A `Tensor`. Has the same type as `x`. \u003cbr /\u003e If `x` is a `SparseTensor`, returns `SparseTensor(x.indices, tf.math.sign(x.values, ...), x.dense_shape)` ||\n\n\u003cbr /\u003e"]]
TensorFlow 1 version