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+--- Thread: I need a help to solve equations system (/thread-9919.html)
I need a help to solve equations system - alizo_as - May-04-2018
I have this code bellow
from __future__ import division
import numpy as np
from sympy import *
t, r = symbols('t, r')
A = np.matrix(input("Insert Matrix nxn: "))
n = A.shape[1]
C = MatrixSymbol('P', n, n)
D = np.multiply(A,C)
SomP = D.sum(axis=1)
F = np.multiply(A,C)
for j in range(n):
for k in range(n):
if D[j,k]!=0:
F[j,k] = D[j,k] - t*(SomP[k] - D[k,j]) - r*D[k,j]
print F[j,k]and, for example, giving the matrix [[0,1,1],[1,0,1],[1,1,0]], I get this equations:[[-r*P[1, 0] - t*P[1, 2] + P[0, 1]]]
[[-r*P[2, 0] - t*P[2, 1] + P[0, 2]]]
[[-r*P[0, 1] - t*P[0, 2] + P[1, 0]]]
[[-r*P[2, 1] - t*P[2, 0] + P[1, 2]]]
[[-r*P[0, 2] - t*P[0, 1] + P[2, 0]]]
[[-r*P[1, 2] - t*P[1, 0] + P[2, 1]]]
How do I solve this system of equations F[j,k]?
RE: I need a help to solve equations system - Gribouillis - May-04-2018
In what sense are the F[j, k] a system of equations? I only see a set of coefficients depending on r, t and the coefficients of P. What are the unknowns? Can you also describe the mathematical problem that you are trying to solve?