Python | Numpy matrix.std() Last Updated : 20 May, 2019 Comments Improve Suggest changes Like Article Like Report With the help of matrix.std() method, we are able to find the standard deviation a matrix by using the same method. Syntax : matrix.std() Return : Return standard deviation of a matrix Example #1 : In this example we are able to find the standard deviation of a matrix by using matrix.std() method. Python3 1=1 # import the important module in python import numpy as np # make matrix with numpy gfg = np.matrix('[4, 1; 12, 3]') # applying matrix.std() method geek = gfg.std() print(geek) Output: 4.18330013267 Example #2 : Python3 1== # import the important module in python import numpy as np # make matrix with numpy gfg = np.matrix('[4, 1, 9; 12, 3, 1; 4, 5, 6]') # applying matrix.std() method geek = gfg.std() print(geek) Output: 3.3993463424 Comment More infoAdvertise with us Next Article Python | Numpy matrix.std() J jitender_1998 Follow Improve Article Tags : Python Python-numpy Python numpy-Matrix Function Practice Tags : python Similar Reads numpy.std() in Python numpy.std() is a function provided by the NumPy library that calculates the standard deviation of an array or a set of values. Standard deviation is a measure of the amount of variation or dispersion of a set of values.\text{Standard Deviation} = \sqrt{\text{mean} \left( (x - x.\text{mean}())^2 \rig 3 min read numpy.matrix() in Python This class returns a matrix from a string of data or array-like object. Matrix obtained is a specialised 2D array. Syntax : numpy.matrix(data, dtype = None) : Parameters : data : data needs to be array-like or string dtype : Data type of returned array. Returns : data interpreted as a matrix Python 1 min read numpy.asmatrix() in Python numpy.asmatrix(data, dtype = None) Returns a matrix by interpreting the input as a matrix. Parameters : data : array-like input data dtype : Data type of returned array Returns : Interprets the input as a matrix Python # Python Programming illustrating # numpy.asmatrix import numpy as geek # array-l 1 min read Python | Numpy matrix.transpose() With the help of Numpy matrix.transpose() method, we can find the transpose of the matrix by using the matrix.transpose()method in Python. Numpy matrix.transpose() Syntax Syntax : matrix.transpose() Parameter: No parameters; transposes the matrix it is called on. Return : Return transposed matrix Wh 3 min read numpy.array_str() in Python numpy.array_str()function is used to represent the data of an array as a string. The data in the array is returned as a single string. This function is similar to array_repr, the difference being that array_repr also returns information on the kind of array and its data type. Syntax : numpy.array_st 2 min read Like