ALLSUMS - Casio 9800

Introduction
This program computes left, right, Trapezoid, Midpoint, and Simpson's approximations for  $\int\limits_a^bf(x)dx$.
 
If you have not used one of the programs posted on this website before, you should read through the information in the Intro to Programming section first.

The Program
'ALLSUMS' {'   is in ALPHA} {This is the name of the program}
Lbl 1 {Lbl is in PRGM under JMP}
"A"?A {" is in ALPHA} {?   is in PRGM} { is on the   ,   button}
"B"?B
"N"?N
(B-A) N H
AX
0L {The 0 is a zero}
0M {The 0 is a zero}
Lbl 2
L+Y1H L {Y1 is in VAR under GPH, then followed by a 1}
X+H 2 X
M+Y1H M
X+H 2 X
Dsz N {Dsz is in PRGM under JMP}
Goto 2 {Goto is in PRGM under JMP}
BX
L+Y1H R
AX
R-Y1H R
(L+R) 2T
(2M+T)3 S          
"L R T M S"
L { is in PRGM}
R
T
M
S
Goto 1

Running the Program
 
You will need to enter a function f(x) into Y1 before running the program. The program will ask for values of A, B, and N (number of subdivisions).
 
To test the program try the following:
  f(x)  =  x2+ 3,   A=1,   B=4,   N=20.
 
Your answer will be
L R T M S
28.88625
31.13625
30.01125
29.994375
30
To get each estimate hit EXE.