Python | Numpy np.leg2poly() method Last Updated : 29 Dec, 2019 Summarize Comments Improve Suggest changes Share Like Article Like Report np.leg2poly() method is used to convert a legendre series to a polynomial. Syntax : np.leg2poly(c) Parameters: c :[array_like] 1-D arrays of legendre series coefficients ordered from low to high. Return : [ndarray] 1-D array containing the coefficients of the equivalent polynomial. Code #1 : Python3 # Python program explaining # numpy.leg2poly() method # importing numpy as np # and numpy.polynomial.legendre module as geek import numpy as np import numpy.polynomial.legendre as geek # Input legendre series coefficients c = np.array([0.1, 0.2, 0.3, 0.4, 0.5]) # using np.leg2poly() method res = geek.leg2poly(c) # Resulting equivalent polynomial series coefficient print (res) Output: [ 0.1375 -0.4 -1.425 1. 2.1875] Code #2 : Python3 # Python program explaining # numpy.leg2poly() method # importing numpy as np # and numpy.polynomial.legendre module as geek import numpy as np import numpy.polynomial.legendre as geek # Input legendre series coefficients c = ( 1, 2, 3, 4, 5) # using np.leg2poly() method res = geek.leg2poly(c) # Resulting equivalent polynomial series coefficient print (res) Output: [ 1.375 -4. -14.25 10. 21.875] Comment More infoAdvertise with us Next Article Python | Numpy np.legzero() method J jana_sayantan Follow Improve Article Tags : Python Python-numpy Python numpy-Mathematical Function Practice Tags : python Similar Reads Python | Numpy np.lag2poly() method np.lag2poly() method is used to convert a Laguerre series to a polynomial. Syntax : np.lag2poly(c) Parameters: c :[array_like] 1-D arrays of Laguerre series coefficients ordered from low to high. Return : [ndarray] 1-D array containing the coefficients of the equivalent polynomial. Code #1 : Python3 1 min read Python | Numpy np.legmul() method np.legmul() method is used to multiply one Legendre series to another.It returns the product of two Legendre series c1 * c2. Syntax : np.legmul(c1, c2) Parameters: c1, c2 :[ array_like ] 1-D arrays of Legendre series coefficients ordered from low to high. Return : [ndarray] Legendre series coefficie 1 min read Python | Numpy np.legzero() method np.legzero() method can be used instead of np.zeros for creating a array whose elements are 0. Syntax : np.legzero() Return : Return array([0]) Example #1 : Python3 1=1 # Python program explaining # numpy.legzero() method # import numpy and legzero import numpy as np from numpy.polynomial.legendre i 1 min read Python | Numpy np.legroots() method np.legroots() method is used to compute the roots of a legendre series.Return the roots of the polynomial. Syntax : np.legroots(c) Parameters: c :[array_like] 1-D arrays of legendre series coefficients. Return : [ndarray] Array of the roots of the series. If all the roots are real, then out is also 1 min read Python | Numpy np.legdiv() method np.legdiv() method is used to divide one Legendre series to another.It returns the quotient-with-remainder of two Legendre series c1 / c2. Syntax : np.legdiv(c1, c2) Parameters: c1, c2 :[ array_like ] 1-D arrays of Legendre series coefficients ordered from low to high. Return : [ndarray] Legendre se 1 min read Python | Numpy np.legadd() method np.legadd() method is used to add one Legendre series to another.It returns the sum of two Legendre series c1 + c2. Syntax : np.legadd(c1, c2) Parameters: c1, c2 :[ array_like ] 1-D arrays of Legendre series coefficients ordered from low to high. Return : [ndarray] Array representing the Legendre se 1 min read Like