I wrote a code to solve a set of 3 linear equations containing 3 variables.
The equations are :
x+y+3z = 6; 2x+3y-4z=6;3x+2y+7z=0
The code I wrote is:
import numpy as np
A=np.matrix([1,1,3],[2,3,-4],[3,2,7])
B=np.matrix([6],[6],[0])
Ainverse=np.linalg.inv(A)
X=Ainverse*B
print (X)
But this is showing the error:
TypeError: Field elements must be 2- or 3-tuples, got '2'
I dont seem to understand what it is. Please help
You have missed [] bracket in matrix(...):
A=np.matrix([[1,1,3],[2,3,-4],[3,2,7]])
B=np.matrix([[6],[6],[0]])
Please refer this.
solve with numpy.linalg package
import numpy as np
from numpy.linalg import solve
A=np.array([[1,1,3],[2,3,-4],[3,2,7]])
# b=np.array([[6],[6],[0]])
b=np.array([[6],[6],[0]]).T[0]
x= solve(A,b)
print (x.flatten())
print('\n'.join(["x" + str(i[0]) + " = "+str(format(i[1], '.2f')) + ", " for i in enumerate(x.flatten())])) # tuple print
print(np.allclose(np.dot(A, x), b))
