TI-84 Plus CE:
Updated TI-84 RPN Program
For the original
TI84RPN program, click here:
Introduction to TI84RPNS
The program TI84RPNS puts the TI-84 Plus CE into RPN (reverse polish notation) mode
with arithmetic functions, power, square root, reciprocal, and
π. The program contains room for one independent memory and a four
level stack that works like the classic Hewlett Packard RPN calculators.
The program uses list 6 (L6)
as the stack, with six elements:
L6(1): X
stack (displayed – bottom number)
L6(2): Y
stack (displayed – top number)
L6(3): Z
stack
L6(4): T
stack
L6(5):
Independent memory stack
L6(6):
(temporary memory)
What’s New: TI84PRNS adds
trigonometric, logarithmic, and additional numeric functions have been
added. Also, the [ XTθN ]/(link) key is
used to switch angle modes between Degrees and Radians.
If you need an idea how RPN works, please check this out: http://edspi31415.blogspot.com/2011/09/rpn-basics.html
You can download TI84PRNS here:
https://drive.google.com/open?id=0B7R8x9Yi26yGNHRSblRhNU5PQzQ
To enter numbers, this program requires you to press the [enter]
key prior to entering a number on the stack.
The following keys with the associated functions are available:
Primary Keys
[ enter ] Enter number
[ + ] Add: Y + X
[ - ] Subtract: Y - X
[ × ] Multiplication: Y * X
[ ÷ ] Divide: Y/X
[ ^ ] Exponent: Y^X
[ x2 ] Square:
x^2
[ x-1 ]
Reciprocal: 1/x
[ (-) ] Switch the sign of X (multiply X by -1)
[ sto> ] Store X in independent memory
[ alpha ] Recall memory
[ clear ] Clear X stack to 0
[ sin ] Sine of X
[ cos ] Cosine of X
[ tan ] Tangent of X
[ log ] Common Logarithm
(base 10) of X
[ ln ] Natural Logarithm (base e) of X
Function Keys:
[ Y= ] (F1): CIRC: Area of the Circle, radius is on stack X
[ window ] (F2): DIAG: Diagonal/Polar Radius, √(X^2 + Y^2)
[ zoom ] (F3): PRCH:
Percent Change from Y to X
[ trace ] (F4): ANGL:
Angle Function, angle(Yi+X)
[ graph ] (F5): REAL:
Real portion of the complex number in X
Stack operations:
[ ( ] Swap with X and Y
[ ) ] Roll stack down, result { Y, T, Z, X }
Mode operations:
[ XTθN ] Switch to Degrees Mode
Exit TI84PRNS:
Press [ mode ]
Secondary Keys: Keys
pressed after [ 2nd ] is pressed
[ 2nd ]
Cancels 2nd
[ ^ ] ( π ) Enters π to
the Stack
[ x2 ] ( √ ) Square Root of X
[ sin ] (sin-1)
Arcsine of X
[ cos ] (cos-1)
Arccosine of X
[ tan ] (tan-1) Arctangent of X
[ log ] (10x)
Common antilog (base 10) of X
[ ln ] (ex) Exponential function (base e) of X
Function Keys:
[ Y= ] (F1): ABS: Absolute Value of X
[ window ] (F2): INT: Integer Part of X
[ zoom ] (F3): FRC:
Fractional Part of X
[ trace ] (F4): SIGN:
Sign of X
[ graph ] (F5): IMAG: Imaginary
portion of the complex number in X
Mode operations:
[ 2nd ], [ XTθN ] Switch to Radians Mode
Example: 2 + 3 + 9 = 14
Keys:
[ enter ], 2, [ enter ]
[ enter ], 3, [ enter ], [ + ],
[ enter ], 9, [ enter ], [ + ]
See more examples below.
TI-84 Plus Program
TI84RPNS:
Disp
"TI-84+ BASIC RPNS"
Disp
"DEC. 2016"
Full
a+bi
{0,0,0,0,0,0}→L6
ClrHome
Lbl
1
While
1
getKey→K
While
K=0
getKey→K
Output(2,1,L6(2))
Output(3,1,L6(1))
Output(4,1,"(:
SWAP, ): ROLL")
Output(5,1,"MODE:
EXIT, ALPHA: RCL")
Output(6,1,"XTθN:
DEG/RAD")
Output(7,1,"ENTER:
ENTER NUMBER")
Output(8,1,"CIRC/DIAG/PCHG/ANGL/REAL")
End
If
K=22:Then:ClrHome:Stop:End
If
K=21:Then:Goto 20:End
If
K=45:Then:0→L6(1):ClrHome:End
If
K=55:Then:L6(2)^L6(1)→L6(6)
Goto
2:End
If
K=65:Then:L6(2)/L6(1)→L6(6)
Goto
2:End
If
K=75:Then:L6(2)*L6(1)→L6(6)
Goto
2:End
If
K=85:Then:L6(2)-L6(1)→L6(6)
Goto
2:End
If
K=95:Then:L6(2)+L6(1)→L6(6)
Goto
2:End
If
K=105:Then:Goto 4:End
If
K=51:Then:1/L6(1)→L6(1):ClrHome:Goto 1:End
If
K=61:Then:L6(1)²→L6(1):ClrHome:Goto 1:End
If
K=52:Then:sin(L6(1))→L6(1):ClrHome:Goto 1:End
If
K=53:Then:cos(L6(1))→L6(1):ClrHome:Goto 1:End
If
K=54:Then:tan(L6(1))→L6(1):ClrHome:Goto 1:End
If
K=71:Then:log(L6(1))→L6(1):ClrHome:Goto 1:End
If
K=81:Then:ln(L6(1))→L6(1):ClrHome:Goto 1:End
If
K=104:Then:L6(1)→L6(1):ClrHome:Goto 1:End
"CIRC"
If
K=11:Then:L6(1)²*π→L6(1):ClrHome:Goto 1:End
"DIAG"
If
K=12:Then:√(L6(1)²+L6(2)²)→L6(6)
L6(6)→L6(1):L6(3)→L6(2):L6(4)→L6(3)
ClrHome
Goto
1:End
"PCHG"
If
K=13:Then:100*(L6(1)-L6(2))/L6(2)→L6(6)
L6(6)→L6(1):L6(3)→L6(2):L6(4)→L6(3)
ClrHome
Goto
1:End
"ANGL"
If
K=14
Then:angle(L6(1)+L6(2)*i)→L6(6)
L6(6)→L6(1):L6(3)→L6(2):L6(4)→L6(3)
ClrHome
Goto
1:End
"REAL"
If
K=15:Then:real(L6(1))→L6(1):ClrHome:Goto 1:End
If
K=63:Then:Goto 5:End
If
K=64:Then:Goto 6:End
If
K=91:Then:L6(1)→L6(5):Goto 1:End
If
K=31:Then:L6(5)→L6(6):Goto 3:End
If
K=32:Then:Degree:Goto 1:End
If
K=22:Then:ClrHome:Stop:End
Goto
1
Lbl
2
"TWO
OPERATION"
L6(6)→L6(1):L6(3)→L6(2):L6(4)→L6(3)
ClrHome
Goto
1
Lbl
3
"RCL/INPUT"
L6(3)→L6(4):L6(2)→L6(3):L6(1)→L6(2)
L6(6)→L6(1):ClrHome
Goto
1
Lbl
4
"INPUT
NUMBER"
ClrHome
Input
"NUMBER:",N
N→L6(6)
Goto
3
Lbl
5
"SWAP"
L6(1)→L6(6):L6(2)→L6(1):L6(6)→L6(2)
ClrHome
Goto
1
Lbl
6
"ROLL"
L6(1)→L6(6)
L6(2)→L6(1):L6(3)→L6(2):L6(4)→L6(3)
L6(6)→L6(4)
ClrHome
Goto
1
End
Lbl
20
ClrHome
While
1
getKey→K
While
K=0
getKey→K
Output(2,1,L6(2))
Output(3,1,L6(1))
Output(4,1,"2ND")
Output(8,1,"ABS
/INT /FRC /SIGN/IMAG")
End
If
K=21:Goto 1
"PI"
If
K=55:Then:
π→L6(6)
L6(3)→L6(4):L6(2)→L6(3):L6(1)→L6(2)
L6(6)→L6(1):ClrHome
Goto
1
End
"OTHERS"
If
K=32:Then:Radian:Goto 1:End
If
K=61:Then:√(L6(1))→L6(1):ClrHome:Goto 1:End
If
K=52:Then:sin-1(L6(1))→L6(1):ClrHome:Goto 1:End
If
K=53:Then:cos-1(L6(1))→L6(1):ClrHome:Goto 1:End
If
K=54:Then:tan-1(L6(1))→L6(1):ClrHome:Goto 1:End
If
K=71:Then:10^(L6(1))→L6(1):ClrHome:Goto 1:End
If
K=81:Then:e^(L6(1))→L6(1):ClrHome:Goto 1:End
"ABS
"
If
K=11:Then:abs(L6(1))→L6(1):ClrHome:Goto 1:End
"INT
"
If
K=12:Then:iPart(L6(1))→L6(1):ClrHome:Goto 1:End
"FRC
"
If
K=13:Then:fPart(L6(1))→L6(1):ClrHome:Goto 1:End
"SIGN"
If
K=14:Then:abs(L6(1))/L6(1)→L6(1):ClrHome:Goto 1:End
"IMAG"
If
K=15:Then:imag(L6(1))→L6(1):ClrHome:Goto 1:End
End
Remember to keep the Order of Operations in mind when running
this program.
Example 1: 1/(10 – 1.5^2.5)
= 0.1380391041
[ enter ], 10, [ enter ]
[ enter ], 1.5, [ enter ]
[ enter ], 2.5, [ enter ]
[ ^ ], [ - ], [ x-1 ]
Example 2: √(6^2 + 7^2)
= 9.219544457
[ enter ], 6, [ enter ], [ x2 ]
[ enter ], 7, [ enter ], [ x2 ]
[ + ], [ , ]
Example 3: Store 1.758 in
memory. (Let M = 1.758)
Calculate 10 – 1.1^M + 2M = 12.33358933
[ enter ], 1.758, [ enter ], [ sto> ]
[ enter ], 10, [ enter ]
[ enter ], 1.1, [ enter ]
[ alpha ], [ ^ ], [ - ]
[ enter ], 2, [ enter ]
[ alpha ], [ × ], [ + ]
Example 4: (10 + (8 –
5%)) + 9% = (10 + (8 * .95)) * 1.09 = 19.184
[ enter ], 8, [ enter ]
[ enter ], .95, [ enter ], [ × ]
[ enter ], 10, [ enter ], [ + ]
[ enter ], 1.09, [ enter ], [ × ]
Example 5: e^(1.5) = 4.48168907
[ enter ], 1.5, [ enter ]
[ 2nd ], [ ln ] (ex)
Example 6: sin((10/√(2^2
+ 2.5^2))°) = 0.0544879291
Use the DIAG function for √(2^2 + 2.5^2)
[ XTθN ] (set Degrees mode)
[ enter ], 2, [ enter ]
[ enter ], 2.5, [ enter ]
[ window ] (F2)
[ x-1 ], [ enter ], 10, [ enter ]
[ * ], [ sin ]
Example 7: What is the
percent change from 10.99 to 20.99? 90.99181074
(%)
[ enter ], 10.99, [ enter ]
[ enter ], 20.99, [ enter ]
[ zoom ] (F3)
This blog is property of Edward Shore, 2016
