Python | Numpy np.lagval2d() method Last Updated : 23 Jan, 2020 Summarize Comments Improve Suggest changes Share Like Article Like Report With the help of np.lagval2d() method, we can get the 2-D laguerre series at point x by using np.lagval2d() method. Syntax : np.lagval2d(x, y, c) Return : Return the 2-D laguerre series at point x and y. Example #1 : In this example we can see that by using np.lagval2d() method, we are able to get the 2-D laguerre series at point x and y by using this method. Python3 1=1 # import numpy and lagval2d import numpy as np from numpy.polynomial.laguerre import lagval2d x = np.array([[1, 2], [3, 4]]) y = np.array([[5, 10], [15, 20]]) c = np.array([1, 2]) # import np.lagval2d() method gfg = lagval2d(x, y, c) print(gfg) Output : [[13. 44.] [43. 94.]] Example #2 : Python3 1=1 # import numpy and lagval2d import numpy as np from numpy.polynomial.laguerre import lagval2d x = np.array([[1, 2], [3, 4]]) y = np.array([[-1, -2], [-3, -4]]) c = np.array([1, -2]) # import np.lagval2d() method gfg = lagval2d(x, y, c) print(gfg) Output : [[11. 24.] [21. 38.]] Comment More infoAdvertise with us Next Article Python | Numpy np.lagval3d() method J jitender_1998 Follow Improve Article Tags : Python Python-numpy Python numpy-Mathematical Function Practice Tags : python Similar Reads Python | Numpy np.lagval() method With the help of np.lagval() method, we can get the laguerre series at point x by using np.lagval() method. Syntax : np.lagval(x, c) Return : Return the laguerre series at point x. Example #1 : In this example we can see that by using np.lagval() method, we are able to get the laguerre series at poi 1 min read Python | Numpy np.lagval3d() method With the help of np.lagval3d() method, we can get the 3-D laguerre series at point x by using np.lagval3d() method. Syntax : np.lagval3d(x, y, z, c) Return : Return the 3-D laguerre series at point x, y and z. Example #1 : In this example we can see that by using np.lagval3d() method, we are able to 1 min read Python | Numpy np.lagadd() method np.lagadd() method is used to add one Laguerre series to another.It returns the sum of two Laguerre series c1 + c2. Syntax : np.lagadd(c1, c2) Parameters: c1, c2 :[ array_like ] 1-D arrays of Laguerre series coefficients ordered from low to high. Return : [ndarray] Array representing the Laguerre se 1 min read Python | Numpy np.lagvander2d() method With the help of np.lagvander2d() method, we can get the Pseudo-Vandermonde matrix from given array having degree which is passed as parameter by using np.lagvander2d() method. Syntax : np.lagvander2d(x, y, deg) Parameters: x, y :[ array_like ] Array of points. The dtype is converted to float64 or c 2 min read Python | Numpy np.lagvander() method With the help of np.lagvander() method, we can get the Pseudo-Vandermonde matrix from given array having degree which is passed as parameter by using np.lagvander() method. Syntax : np.lagvander(arr, degree) Parameters: arr :[ array_like ] Array of points. The dtype is converted to float64 or comple 2 min read Python | Numpy np.lagder() method np.lagroots() method is used to differentiate a Laguerre series. Syntax : np.lagder(c, m=1, scl=1, axis=0) Parameters: c :[array_like] 1-D arrays of Laguerre series coefficients ordered from low to high. m :[int, optional] Number of derivatives taken, must be non-negative.Default is 1. scl :[scalar, 1 min read Like