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## Main Question or Discussion Point

Hi,

I need to write a code to convert a symmetic matrix into tridiagonal form and am planning to use the Householder algorithm.

I understand the mathematical steps.

Can anyone explain that when we are converting a matrix "A" into a tridiagonal form what does it physically indiacte?

I mean what are doing? Is it that we are taking each column of the matrix i.e.a vector and making the necessary elements 0 so as to get a tridiagonal matrix which has non zero elements just along the principal diagonal and the first diagonal below this, and the first diagonal above the main diagonal.

I shall be grateful if someone puts it's point of view.

Vishal

I need to write a code to convert a symmetic matrix into tridiagonal form and am planning to use the Householder algorithm.

I understand the mathematical steps.

Can anyone explain that when we are converting a matrix "A" into a tridiagonal form what does it physically indiacte?

I mean what are doing? Is it that we are taking each column of the matrix i.e.a vector and making the necessary elements 0 so as to get a tridiagonal matrix which has non zero elements just along the principal diagonal and the first diagonal below this, and the first diagonal above the main diagonal.

I shall be grateful if someone puts it's point of view.

Vishal