Texas Instruments TI-89 and TI-92 Plus Computer 

Last page update: March 08, 2000 
Iterated Integral Function - for the TI-89 and TI-92 Plus
Version 1.0   (March 08, 2000)
Download [ ii.zip ]
Description Iterated integrals. This function is nearly equivalent to nesting the integral function but some may find this format easier for entry.
Screen shots
Screen image
Documentation Usage:
ii(Expr,{{Var1[,LOW[,HIGH]]},...}) ->EXPR

Expr: An integrable function of one or more variables (limited only by memory). 

LOW: Optional constant of integration (or lower limit of integration if HIGH is included).

HIGH: Optional upper limit of integration.

Return value:
An EXPR, the iterated integral. 

1. ii(x+y, {x, y})

2. ii(x+y, {{x,a}, {y,b}}) or ii(x+y, [x,a;y,b])

3. ii(x+y, {{x,0,1}, {y,1,2}}) or ii(x+y, [x,0,1;y,1,2])