Python | Numpy np.polyzero() method Last Updated : 31 Dec, 2019 Comments Improve Suggest changes Like Article Like Report 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.polynomial import polyzero # using np.polyzero() method ans = polyzero print(ans) Output : [0] Example #2 : Python3 1=1 # Python program explaining # numpy.polyzero() method # import numpy and polyzero import numpy as np from numpy.polynomial.polynomial import polyzero # using np.polyzero() method ans = polyzero + [[1, 3, 5], [2, 4, 6]] print(ans) Output : [[1 3 5] [2 4 6]] 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.polyone() method 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 1 min read Python | Numpy np.polyroots() method np.polyroots() method is used to compute the roots of a polynomial series.Return the roots of the polynomial. Syntax : np.polyroots(c) Parameters: c :[array_like] 1-D arrays of polynomial series coefficients. Return : [ndarray] Array of the roots of the series. If all the roots are real, then out 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.polyvander3d() method np.polyvander3d() method is used to returns the Vandermonde matrix of degree deg and sample points x, y and z. Syntax : np.polyvander3d(x, y, z, deg) Parameters: x, y, z :[ array_like ] Array of points. The dtype is converted to float64 or complex128 depending on whether any of the elements are comp 2 min read Python | Numpy np.polygrid3d() method np.polygrid3d() method is used to evaluate a 3-D polynomial series on the Cartesian product of x, y and z. Syntax : np.polygrid3d(x, y, z, c) Parameters: x, y, z :[array_like]The three dimensional series is evaluated at the points in the Cartesian product of x, y and z. If x or y or z is a list or t 2 min read Like