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converting list of lists into matrix

0

$begingroup$

class Matrix(object):
def init(self, matrix):
'''(Matrix, list)-> NoneType
creates a data attribute elements and instantiate it to the matrix.

 Preconditions: list e contains 2 sublists, all the sublists in e have the same length.

 Complete the instance variable definitions DO NOT CHANGE THE VARIABLE NAMES. Feel free to
 add new ones
 '''
 self.elements = matrix
 self.cols = len(matrix) # number of columns
 self.rows = len(matrix[0]) # number of rows
 self.matempty = [] #create the empty list
 self.dididi = ''#create the empty str

def __str__(self):
 '''(Matrix) -> str 
 returns a string representation of the elements of the matrix. When passed to print() this
 representation should result in the original matrix being displayed as follows: each row
 will be displayed on a separate line, with each element in a row separated from the next by
 one, and only one blank space. The string representation should not contain any additional
 blank spaces. Print nothing if the matrix is empty.

 >>> print(Matrix([[1,2], [3,4]]))
 1 2
 3 4
 >>> print(Matrix([[0,-1.5,2.0], [-1, 4.5, 0]]))
 0 -1.5 2.0
 -1 4.5 0 
 >>> print(Matrix([[]]))

 '''
 for i in range(0,self.rows):
 self.dididi += 'n'
 for j in range(0,self.cols):
 self.dididi += '%g ' %(self.elements[i][j])
 return self.dididi

the second one cannot be inputed

python matrix

share

asked 3 mins ago

JasmineJasmine

1

New contributor

Jasmine is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

add a comment | 

0

$begingroup$

class Matrix(object):
def init(self, matrix):
'''(Matrix, list)-> NoneType
creates a data attribute elements and instantiate it to the matrix.

 Preconditions: list e contains 2 sublists, all the sublists in e have the same length.

 Complete the instance variable definitions DO NOT CHANGE THE VARIABLE NAMES. Feel free to
 add new ones
 '''
 self.elements = matrix
 self.cols = len(matrix) # number of columns
 self.rows = len(matrix[0]) # number of rows
 self.matempty = [] #create the empty list
 self.dididi = ''#create the empty str

def __str__(self):
 '''(Matrix) -> str 
 returns a string representation of the elements of the matrix. When passed to print() this
 representation should result in the original matrix being displayed as follows: each row
 will be displayed on a separate line, with each element in a row separated from the next by
 one, and only one blank space. The string representation should not contain any additional
 blank spaces. Print nothing if the matrix is empty.

 >>> print(Matrix([[1,2], [3,4]]))
 1 2
 3 4
 >>> print(Matrix([[0,-1.5,2.0], [-1, 4.5, 0]]))
 0 -1.5 2.0
 -1 4.5 0 
 >>> print(Matrix([[]]))

 '''
 for i in range(0,self.rows):
 self.dididi += 'n'
 for j in range(0,self.cols):
 self.dididi += '%g ' %(self.elements[i][j])
 return self.dididi

the second one cannot be inputed

python matrix

share

asked 3 mins ago

JasmineJasmine

1

New contributor

Jasmine is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

add a comment | 

$begingroup$

class Matrix(object):
def init(self, matrix):
'''(Matrix, list)-> NoneType
creates a data attribute elements and instantiate it to the matrix.

 Preconditions: list e contains 2 sublists, all the sublists in e have the same length.

 Complete the instance variable definitions DO NOT CHANGE THE VARIABLE NAMES. Feel free to
 add new ones
 '''
 self.elements = matrix
 self.cols = len(matrix) # number of columns
 self.rows = len(matrix[0]) # number of rows
 self.matempty = [] #create the empty list
 self.dididi = ''#create the empty str

def __str__(self):
 '''(Matrix) -> str 
 returns a string representation of the elements of the matrix. When passed to print() this
 representation should result in the original matrix being displayed as follows: each row
 will be displayed on a separate line, with each element in a row separated from the next by
 one, and only one blank space. The string representation should not contain any additional
 blank spaces. Print nothing if the matrix is empty.

 >>> print(Matrix([[1,2], [3,4]]))
 1 2
 3 4
 >>> print(Matrix([[0,-1.5,2.0], [-1, 4.5, 0]]))
 0 -1.5 2.0
 -1 4.5 0 
 >>> print(Matrix([[]]))

 '''
 for i in range(0,self.rows):
 self.dididi += 'n'
 for j in range(0,self.cols):
 self.dididi += '%g ' %(self.elements[i][j])
 return self.dididi

the second one cannot be inputed

python matrix

share

asked 3 mins ago

JasmineJasmine

1

New contributor

Jasmine is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

$endgroup$

 Preconditions: list e contains 2 sublists, all the sublists in e have the same length.

 Complete the instance variable definitions DO NOT CHANGE THE VARIABLE NAMES. Feel free to
 add new ones
 '''
 self.elements = matrix
 self.cols = len(matrix) # number of columns
 self.rows = len(matrix[0]) # number of rows
 self.matempty = [] #create the empty list
 self.dididi = ''#create the empty str

def __str__(self):
 '''(Matrix) -> str 
 returns a string representation of the elements of the matrix. When passed to print() this
 representation should result in the original matrix being displayed as follows: each row
 will be displayed on a separate line, with each element in a row separated from the next by
 one, and only one blank space. The string representation should not contain any additional
 blank spaces. Print nothing if the matrix is empty.

 >>> print(Matrix([[1,2], [3,4]]))
 1 2
 3 4
 >>> print(Matrix([[0,-1.5,2.0], [-1, 4.5, 0]]))
 0 -1.5 2.0
 -1 4.5 0 
 >>> print(Matrix([[]]))

 '''
 for i in range(0,self.rows):
 self.dididi += 'n'
 for j in range(0,self.cols):
 self.dididi += '%g ' %(self.elements[i][j])
 return self.dididi

share

asked 3 mins ago

JasmineJasmine

1

New contributor

Jasmine is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share

asked 3 mins ago

JasmineJasmine

1

New contributor

Jasmine is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 3 mins ago

JasmineJasmine

1

New contributor

Jasmine is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 3 mins ago

JasmineJasmine

1