Maintenance script: Initial automated import

2016-02-24T18:24:55Z

Initial automated import

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{{Template:TI-BASIC:Command
|picture=SUM.GIF
|summary=Calculates the sum of all or part of a list.
|syntax=sum(''list''[,''start'',[''end''}})
|location=Press:
# 2nd LIST to access the list menu.
# LEFT to access the MATH submenu.
# 5 to select sum(, or use arrows and ENTER.
|compatibility=TI-83/84/+/SE
|size=1 byte
]]

The sum( command calculates the sum of all or part of a list.

When you use it with only one argument, the list, it sums up all the elements of the list. You can also give it a bound of ''start'' and ''end'' and it will only sum up the elements starting and ending at those indices (inclusive).

sum({1,2,3,4,5})
15
sum({1,2,3,4,5},2,4)
9
sum({1,2,3,4,5},3)
12

= Optimization =

If the value of ''end'' is the last element of the list, it can be omitted:

sum({1,2,3,4,5},3,5)
can be
sum({1,2,3,4,5},3)

= Error Conditions =

* '''[[TI-BASIC:Errors#domain|ERR:DOMAIN]]''' is thrown if the starting or ending value aren't positive integers.
* '''[[TI-BASIC:Errors#invaliddim|ERR:INVALID DIM]]''' is thrown if the starting or ending value exceed the size of the list, or are in the wrong order.

= Related Commands =

* [[TI-BASIC:Prod|Prod(]]
* [[TI-BASIC:Dim|Dim(]]
* [[TI-BASIC:Seq_List|seq(]][[Category:TI-BASIC]]
[[Category:TIBD]]

TI-BASIC:Sum - Revision history

Maintenance script: Initial automated import