verdsveven/LinAlg-Practice
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

check matrix invertible before invoking invcheck, trim unnecessary

Browse Source
This commit is contained in:
Lukasz M 2022-04-09 17:31:56 +02:00
parent 6eb450ddbe
commit 9ddeaaf907
1 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
linalg-practice.py
View File

@ -38,11 +38,9 @@ def detcheck(a, b, rowcol, intmax):
# invcheck function to check if the inverse of the matrix is correct # invcheck function to check if the inverse of the matrix is correct
def invcheck(a, b, rowcol, intmax): def invcheck(a, b, rowcol, intmax):
det = a.det() # return bool based on if input equals inverse of matrix
if det != 0 : print("What is the inverse of this matrix?")
# return bool based on if input equals inverse of matrix return (sp.Matrix(inmat(rowcol)) == a.inv())
print("What is the inverse of this matrix?")
return (sp.Matrix(inmat(rowcol)) == a.inv())
# eigcheck function to check if the eigenvalues are correct # eigcheck function to check if the eigenvalues are correct
def eigcheck(a, b, rowcol, intmax): def eigcheck(a, b, rowcol, intmax):
@ -92,6 +90,9 @@ def practice(t) :
if t == "diag" : if t == "diag" :
while not a.is_diagonalizable : while not a.is_diagonalizable :
a = genmatrix(rowcol, intmax, dif) a = genmatrix(rowcol, intmax, dif)
if t == "inv" :
while a.det() == 0 :
a = genmatrix(rowcol, intmax, dif)
sp.pprint(a) sp.pprint(a)
# if return of function is True # if return of function is True
if f(a, b, rowcol, intmax) : if f(a, b, rowcol, intmax) :