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Evaluate a Laguerre series at multidimensional array of points x in Python

AmitDiwan
Updated on 04-Mar-2022 06:44:38

146 Views

To evaluate a Laguerre series at multi-dimensional array of points x, use the polynomial.laguerre.lagval() method in Python Numpy. The 1st parameter is x. If x is a list or tuple, it is converted to an ndarray, otherwise it is left unchanged and treated as a scalar. In either case, x or its elements must support addition and multiplication with themselves and with the elements of c.The 2nd parameter, C, an array of coefficients ordered so that the coefficients for terms of degree n are contained in c[n]. If c is multidimensional the remaining indices enumerate multiple polynomials. In the two ... Read More

C++ Program to find winner name of stick crossing game

Arnab Chakraborty
Updated on 04-Mar-2022 06:46:42

273 Views

Suppose we have two numbers n and k. Amal and Bimal are playing a game. The rules are simple. Amal draws n sticks in a row. After that the players take turns crossing out exactly k sticks from left or right in each turn. Amal starts the game. If there are less than k sticks on the paper before some turn, the game ends. Amal wins if he makes strictly more moves than Bimal. We have to find who will be the winner.So, if the input is like n = 10; k = 4, then the output will be Bimal. ... Read More

Evaluate a Laguerre series at array of points x in Python

AmitDiwan
Updated on 04-Mar-2022 06:42:54

145 Views

To evaluate a Laguerre series at array of points x, use the polynomial.laguerre.lagval() method in Python Numpy. The 1st parameter is x. If x is a list or tuple, it is converted to an ndarray, otherwise it is left unchanged and treated as a scalar. In either case, x or its elements must support addition and multiplication with themselves and with the elements of c.The 2nd parameter, C, an array of coefficients ordered so that the coefficients for terms of degree n are contained in c[n]. If c is multidimensional the remaining indices enumerate multiple polynomials. In the two dimensional ... Read More

Evaluate a Laguerre series at points x broadcast over the columns of the coefficient in Python

AmitDiwan
Updated on 04-Mar-2022 06:41:07

136 Views

To evaluate a Laguerre series at points x, use the polynomial.laguerre.lagval() method in Python Numpy. The 1st parameter is x. If x is a list or tuple, it is converted to an ndarray, otherwise it is left unchanged and treated as a scalar. In either case, x or its elements must support addition and multiplication with themselves and with the elements of c.The 2nd parameter, C, an array of coefficients ordered so that the coefficients for terms of degree n are contained in c[n]. If c is multidimensional the remaining indices enumerate multiple polynomials. In the two dimensional case the ... Read More

C++ Program to count number of operations needed to place elements whose index is smaller than value

Arnab Chakraborty
Updated on 04-Mar-2022 06:41:57

277 Views

Suppose we have an array A with n elements. We can perform these operations any number of times −Select any positive integer kSelect any position in the sequence and insert k into that positionSo, the sequence is changed, we proceed with this sequence in the next operation.We have to find minimum number of operations needed to satisfy the condition: A[i]

Integrate a Laguerre series over axis 1 in Python

AmitDiwan
Updated on 04-Mar-2022 06:39:27

167 Views

To integrate a Laguerre series, use the laguerre.lagint() method in Python. The method returns the Laguerre series coefficients c integrated m times from lbnd along axis. At each iteration the resulting series is multiplied by scl and an integration constant, k, is added. The scaling factor is for use in a linear change of variable. The 1st parameter, c is an array of Laguerre series coefficients. If c is multidimensional the different axis correspond to different variables with the degree in each axis given by the corresponding index.The 2nd parameter, m is an order of integration, must be positive. (Default: ... Read More

C++ program to find length of non empty substring whose sum is even

Arnab Chakraborty
Updated on 04-Mar-2022 06:38:37

146 Views

Suppose we have an array A with n elements. We have to find the length of a non-empty subset of its elements such that their sum is even or return -1 when there is no such subset.So, if the input is like A = [1, 3, 7], then the output will be 2, because sum of [1, 3] is 4.StepsTo solve this, we will follow these steps −n := size of A for initialize i := 0, when i < n, update (increase i by 1), do:    if A[i] mod 2 is same as 0, then:       ... Read More

Integrate a Laguerre series over specific axis in Python

AmitDiwan
Updated on 04-Mar-2022 06:38:05

150 Views

To integrate a Laguerre series, use the laguerre.lagint() method in Python. The method returns the Laguerre series coefficients c integrated m times from lbnd along axis. At each iteration the resulting series is multiplied by scl and an integration constant, k, is added. The scaling factor is for use in a linear change of variable.The 1st parameter, c is an array of Laguerre series coefficients. If c is multidimensional the different axis correspond to different variables with the degree in each axis given by the corresponding index. The 2nd parameter, m is an order of integration, must be positive. (Default: ... Read More

Generate a Vandermonde matrix of the Laguerre polynomial with float array of points in Python

AmitDiwan
Updated on 04-Mar-2022 06:31:19

159 Views

To generate a pseudo Vandermonde matrix of the Laguerre polynomial, use the laguerre.lagvander() in Python Numpy. The method returns the pseudo-Vandermonde matrix. The shape of the returned matrix is x.shape + (deg + 1, ), where The last index is the degree of the corresponding Laguerre polynomial. The dtype will be the same as the converted x.The parameter, x returns an 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 converted to a 1-D array. The parameter, deg is the degree of the ... Read More

Generate a Vandermonde matrix of the Laguerre polynomial in Python

AmitDiwan
Updated on 04-Mar-2022 06:26:57

169 Views

To generate a pseudo Vandermonde matrix of the Laguerre polynomial, use the laguerre.lagvander() in Python Numpy. The method returns the pseudo-Vandermonde matrix. The shape of the returned matrix is x.shape + (deg + 1, ), where The last index is the degree of the corresponding Laguerre polynomial. The dtype will be the same as the converted x.The parameter, x returns an 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 converted to a 1-D array. The parameter, deg is the degree of the ... Read More

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