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# tf.math.acos

Computes acos of x element-wise.

### Used in the notebooks

Used in the tutorials

Provided an input tensor, the tf.math.acos operation returns the inverse cosine of each element of the tensor. If y = tf.math.cos(x) then, x = tf.math.acos(y).

Input range is [-1, 1] and the output has a range of [0, pi].

#### For example:

x = tf.constant([1.0, -0.5, 3.4, 0.2, 0.0, -2], dtype = tf.float32)
tf.math.acos(x)
<tf.Tensor: shape=(6,), dtype=float32,
numpy= array([0. , 2.0943952, nan, 1.3694383, 1.5707964, nan],
dtype=float32)>

x A Tensor. Must be one of the following types: bfloat16, half, float32, float64, uint8, int8, int16, int32, int64, complex64, complex128, string.
name A name for the operation (optional).

A Tensor. Has the same type as x.

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[{ "type": "thumb-up", "id": "easyToUnderstand", "label":"Easy to understand" },{ "type": "thumb-up", "id": "solvedMyProblem", "label":"Solved my problem" },{ "type": "thumb-up", "id": "otherUp", "label":"Other" }]