Consider the linear system Ax = b. Which of the following is true regarding the pivot point of matrix A?单项选择题

题目图片
A

a. It is a diagonal element

B

b. It is a non-diagonal element

C

c. It is the maximum value in a column of A

D

d. It is the minimum value in a column of A

E

e. It is the sum of the rows of A

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