To perform pivoting The following function is supposed to accept an augmented matrix, ab, and a pivot row index, i and returns a matrix with all elements below the pivot element eliminated. There are 3 errors in this code... find all the errors and circle them, then write the corrected version of each line below the code. def forward_elim(ab_orig,i): n = len(ab_orig) ab = copy.deepcopy(ab_orig) | fork in range(i,n): for j in range(i,n): ab[k.j] = ab_orig[k,i]*ab_orig[i.j] return ab
To perform pivoting The following function is supposed to accept an augmented matrix, ab, and a pivot row index, i and returns a matrix with all elements below the pivot element eliminated. There are 3 errors in this code... find all the errors and circle them, then write the corrected version of each line below the code. def forward_elim(ab_orig,i): n = len(ab_orig) ab = copy.deepcopy(ab_orig) | fork in range(i,n): for j in range(i,n): ab[k.j] = ab_orig[k,i]*ab_orig[i.j] return ab
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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![To perform pivoting The following function is supposed to accept an augmented matrix, ab, and a pivot row index, i and returns a matrix
with all elements below the pivot element eliminated. There are 3 errors in this code... find all the errors and circle them, then write the
corrected version of each line below the code.
def forward_elim(ab_orig,i):
n = len(ab_orig)
ab = copy.deepcopy(ab_orig)
| for k in range(i,n):
for j in range(i,n):
ab[k.j] = ab_orig[k,i]*ab_orig[i.j]
return ab
return ab should be
return ab_orig
for k in range(i,n) should be
for k in range(i+1,n)
O for j in range(i,n)
n should be n+1
ab[kj] = ab_orig[k,i]*ab_orig[i,j] should be
ab[kj] = ab_orig[j.i]*ab_orig[i,k]
V There should be a line just above the return ab line that reads:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4a353571-df70-4197-b629-ed67f310f69d%2F5c718a35-e717-4a63-9277-39c0cb53891d%2Fnqjz6c_processed.jpeg&w=3840&q=75)
Transcribed Image Text:To perform pivoting The following function is supposed to accept an augmented matrix, ab, and a pivot row index, i and returns a matrix
with all elements below the pivot element eliminated. There are 3 errors in this code... find all the errors and circle them, then write the
corrected version of each line below the code.
def forward_elim(ab_orig,i):
n = len(ab_orig)
ab = copy.deepcopy(ab_orig)
| for k in range(i,n):
for j in range(i,n):
ab[k.j] = ab_orig[k,i]*ab_orig[i.j]
return ab
return ab should be
return ab_orig
for k in range(i,n) should be
for k in range(i+1,n)
O for j in range(i,n)
n should be n+1
ab[kj] = ab_orig[k,i]*ab_orig[i,j] should be
ab[kj] = ab_orig[j.i]*ab_orig[i,k]
V There should be a line just above the return ab line that reads:
![V There should be a line just above the return ab line that reads:
ab[k,i] = 0.0
for j in range(i,n)
n should be n+1 AND
i should be i+1
n = len(ab_orig) should be
n = len(ab_orig[0])
V for j in range(i,n)
i should be i+1](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4a353571-df70-4197-b629-ed67f310f69d%2F5c718a35-e717-4a63-9277-39c0cb53891d%2Ff7jcygm_processed.jpeg&w=3840&q=75)
Transcribed Image Text:V There should be a line just above the return ab line that reads:
ab[k,i] = 0.0
for j in range(i,n)
n should be n+1 AND
i should be i+1
n = len(ab_orig) should be
n = len(ab_orig[0])
V for j in range(i,n)
i should be i+1
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