# INDEX matrix function

## Description

INDEX(**A**,*r*,*c*) Returns the element of matrix **A** located on row *r* and column *c*.

If row number *r* is zero, then a single column *n* × 1 matrix is returned with the data of column *c*.

If column number *c* is zero, then a single row 1 × *n* matrix is returned with the data of row *r*.

## Calculator

## See also

## Recommended book

## Matrix Algebra Useful for Statistics

Shayle R. Searle, Andre I. Khuri

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This book addresses matrix algebra that is useful in the statistical analysis of data as well as within statistics as a whole. The material is presented in an explanatory style rather than a formal theorem-proof format and is self-contained.