Calculator User Manual

Data/Matrix Editor 534

Note: To enter shift, type it from the keyboard or select it from the CATALOG.

Using the CumSum Function

Using the CumSum FunctionUsing the CumSum Function

Using the CumSum Function

The

cumSum function returns a cumulative sum of the elements in a base column. Use

† to define a column header with the syntax:

For example:

Note: To enter cumSum, type it, select it from the CATALOG, or press 2 I and

select it from the List submenu.

ÊË

Í Î

Ê c2=shift(c1,2)

Ë c3=shift(c1,M2)

Ì Shifted columns have the same length as the base

Í Last two elements of c1 shift down and out the

bottom; undefined elements shift into the top.

Î First two elements of c1 shift up and out the top;

undefined elements shift into the bottom.

cumSum (column)

Column used as the base for the cumulative sum.

1+2

1+2+3+4

c2=cumSum(c1)