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Python – tensorflow.math.cos()
  • Last Updated : 26 Jun, 2020

TensorFlow is open-source python library designed by Google to develop Machine Learning models and deep learning  neural networks.
cos() is used to find element wise cos of x.

Syntax: tf.math.cos(x, name)

Parameters: 

  • x: It’s the input tensor. Allowed dtype for this tensor are bfloat16, half, float32, float64. 
  • name(optional): It’s defines the name for the operation.
     

Returns:  It returns a tensor of same dtype as x.
 

Example 1:



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# Importing the library
import tensorflow as tf
  
# Initializing the input tensor
a = tf.constant([ -.5, -.3, 0, .3, .5], dtype = tf.float64)
  
# Printing the input tensor
print('Input: ', a)
  
# Calculating tangent
res = tf.math.cos(x = a)
  
# Printing the result
print('Result: ', res)

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Output:

Input:  tf.Tensor([-0.5 -0.3  0.   0.3  0.5], shape=(5, ), dtype=float64)
Result:  tf.Tensor([0.87758256 0.95533649 1.         0.95533649 0.87758256], shape=(5, ), dtype=float64)



Example 2: Visualization

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# Importing the libraray
import tensorflow as tf
import matplotlib.pyplot as plt
  
# Initializing the input tensor
a = tf.constant([-.5, -.3, 0, .3, .5], dtype = tf.float64)
  
# Calculating tangent
res = tf.math.cos(x = a)
  
# Plotting the graph
plt.plot(a, res, color ='green')
plt.title('tensorflow.math.cos')
plt.xlabel('Input')
plt.ylabel('Result')
plt.show()

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Output:

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