sosokker/Calculator-for-Matrix-and-Algebra
1
0
Fork 0
mirror of https://github.com/Sosokker/Calculator-for-Matrix-and-Algebra.git synced 2025-12-19 21:24:05 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

Implement Complete Determiant calculate func

Browse Source
This commit is contained in:
Sirin Puenggun 2022-12-05 17:06:17 +07:00
parent 25e7a3d098
commit 80eb514d30
1 changed files with 17 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
nessesary/matrix.py
View File

@ -76,6 +76,18 @@ class Matrix:
new_matrix = Matrix(arr) new_matrix = Matrix(arr)
return new_matrix return new_matrix
def new_matrix(a,i):#FUNCTION TO FIND THE NEW MATRIX
arr = a.copy_matrix()
if len(arr) == 2:
return arr
else:
arr.pop(0)
for j in arr:
j.pop(i)
return arr
def determinant(self): def determinant(self):
""" """
Using Cofactor Expanion. Using Cofactor Expanion.
@ -96,14 +108,11 @@ class Matrix:
return self.array[0][0] * self.array[1][1] - self.array[1][0] * self.array[0][1] return self.array[0][0] * self.array[1][1] - self.array[1][0] * self.array[0][1]
det = 0 det = 0
for col in range(self.column): for col in range(len(self.array)):
temp = self.copy_matrix() temp = self.copy_matrix()
temp.array = temp.array[1:] minor = lambda i, j : [row[:j] + row[j+1:] for row in (temp.array[:i]+temp.array[i+1:])]
for r in range(len(temp.array)): temp.array = minor(0,col)
temp.array[r] = temp.array[r][0:col] + temp.array[r][col+1:] det += ((-1)**col)*self.array[0][col]*temp.determinant()
det += (-1)**(col) * self.array[0][col] * temp.determinant()
return det return det
def tranpose(self): def tranpose(self):