Funcion Matrix

En este codigo se generan matrices con la funcion matrix, se manipulan y calculan determinantes.

import numpy as np

from numpy import matrix

import math 

a= matrix([[2,4,1],[1,-2,3],[5,0,-1]])

print("Matriz A\n",a)

b= matrix([[3,-1,-2],[0,5,6],[0,0,9]])

print("Matriz B\n",b)

c= matrix([[2,0,-1],[0,-1,2],[1,-2,5]])

print("Matriz C\n",c)

d=matrix([[3,2,1],[0,2,-5],[-2,1,4]])

print(“Matriz D\n”, d)

print()

print("Matriz A")

print(a.shape)

print("Dimension: ", a.ndim)

print("Matriz B")

print(b.shape)

print("Dimension: ", b.ndim)

print("Matriz C")

print(c.shape)

print("Dimension: ", a.ndim)

print()

print("Matriz D")

print(d.shape)

print("Dimension: ", d.ndim)

print()

print("A - B + C=")

r=-a-b+c

print(r)

print()

print("A + B - C=")

r=a+b-c

print(r)

print()

print("((3*A)+C)/2=")

r=((3*a)+c)/2

print(r)

print()

print("Determinantes\n")

print("Determinante A=")

r=np.linalg.det(a)

r=abs(r)

print("%.1f"%(r))

print("Determinante B=")

r=np.linalg.det(b)

r=abs(r)

print("%.1f"%(r))

print("Determinante C=")

r=np.linalg.det(c)

r=abs(r)

print("%.1f"%(r))

print("Determinante D=")

r=np.linalg.det(d)

r=abs(r)

print("%.1f"%(r))