Python | Numpy np.polyone() method Last Updated : 31 Dec, 2019 Comments Improve Suggest changes Like Article Like Report np.polyone() method can be used instead of np.ones for creating a array whose elements are 1. Syntax : np.polyone() Return : Return array([1]) Example #1 : Python3 1=1 # Python program explaining # numpy.polyone() method # import numpy and polyone import numpy as np from numpy.polynomial.polynomial import polyone # using np.polyone() method ans = polyone print(ans) Output : [1] Example #2 : Python3 1=1 # Python program explaining # numpy.polyone() method # import numpy and polyone import numpy as np from numpy.polynomial.polynomial import polyone # using np.polyone() method ans = polyone + [[1, 3, 5], [2, 4, 6]] print(ans) Output : [[2 4 6] [3 5 7]] Comment More infoAdvertise with us Next Article Python | Numpy np.polyzero() method J jana_sayantan Follow Improve Article Tags : Python Python-numpy Python numpy-Mathematical Function Practice Tags : python Similar Reads Python | Numpy np.polyzero() method np.polyzero() method can be used instead of np.zeros for creating a array whose elements are 0. Syntax : np.polyzero() Return : Return array([0]) Example #1 : Python3 1=1 # Python program explaining # numpy.polyzero() method # import numpy and polyzero import numpy as np from numpy.polynomial.polyno 1 min read Python | Numpy np.polyzero() method np.polyzero() method can be used instead of np.zeros for creating a array whose elements are 0. Syntax : np.polyzero() Return : Return array([0]) Example #1 : Python3 1=1 # Python program explaining # numpy.polyzero() method # import numpy and polyzero import numpy as np from numpy.polynomial.polyno 1 min read Python | Numpy np.polyvander() method np.polyvander() method is used to returns the Vandermonde matrix of degree deg and sample points x. Syntax : np.polyvander(x, deg) Parameters: x :[ array_like ] Array of points. The dtype is converted to float64 or complex128 depending on whether any of the elements are complex. If x is scalar it is 1 min read Python | Numpy np.polyvander() method np.polyvander() method is used to returns the Vandermonde matrix of degree deg and sample points x. Syntax : np.polyvander(x, deg) Parameters: x :[ array_like ] Array of points. The dtype is converted to float64 or complex128 depending on whether any of the elements are complex. If x is scalar it is 1 min read Python | Numpy np.polydomain() method With the help of np.polydomain() method, we can get the filter having value array([-1, 1]) in polynomial series. Syntax : np.polydomain Return : Return filter of array([-1, 1]) Example #1 : Python3 1=1 # Python program explaining # numpy.polydomain() method # import numpy and polydomain import numpy 1 min read Python | Numpy np.polydomain() method With the help of np.polydomain() method, we can get the filter having value array([-1, 1]) in polynomial series. Syntax : np.polydomain Return : Return filter of array([-1, 1]) Example #1 : Python3 1=1 # Python program explaining # numpy.polydomain() method # import numpy and polydomain import numpy 1 min read Like