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TI-81 BASIC MATH PROGRAMS

Archive Statistics
Number of files 92
Last updated Friday, 26 April 2013
Total downloads 589,964
Most popular file  Heron's Formula (area of scalene triangle) with 12,239 downloads.

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NameSizeDateRatingDescription
(Parent Dir)folder Up to TI-81 BASIC Files
allmath.zip23k99-10-28File is not ratedCA to Prob Math Programs
Full array of math programs from college algebra to calculus to probablity and statistics. Separate zip for each section.
areas.813k98-09-05File is not ratedAreas
Area solver
autobi.811k98-03-28File is not ratedAutoBinomial
binom.811k98-03-28File is not ratedBinomial Probability
calcpograms.zip4k00-06-04File is not ratedArea, Surface Area, Volume, & Density Calculators
Includes small (323 bytes combined) programs to calculate Area, Surface Area, Volume, & Density
calcprog.zip4k00-06-08File is not ratedArea, Volume, Density, & Surface Area Calculators
Small (323 bytes combined) programs to calculate Area, Volume, Density, and Surface Area
cardano.811k00-05-09File is not ratedCardanos Equation-solver
Third-grade Equation-solver
combinat.811k98-03-28File is not ratedCombinations
compound.811k98-03-28File is not ratedCompound Interest
conic.txt1k01-02-20File is not ratedConic Section Grapher
graphs ax²+bxy+cy²+dx+ey+f=0
cpxdiv.txt1k01-02-20File is not ratedComplex Division
divides 2 complex numbers
cpxmult.txt1k01-02-20File is not ratedComplex Multiplication
multiplies 2 complex numbers
cubicreg.811k98-03-28File is not ratedCubic Regression
degrad.811k98-03-28File is not ratedDegrees <-> Radians Converter
This program changes Degrees to Radians and vice versa
degreeconverter.811k00-06-03File is not ratedDegree Converter
Celcius<->Fahrenheit<->Kelvin
der2.811k00-10-20File is not ratedSecond Derivative
uses the centered difference formula to evaluate Y1" at a given value of X.
deriv.811k00-11-24File is not ratedDerivara
Derivata solver
diagonal.812k98-03-28File is not ratedNumber of Diagonals in a Polygon
discrimi.811k98-03-29File is not ratedDiscriminant
This program solves for the discrimant of an equation
distance.811k97-07-24File is not ratedDistance Formula
distunit.811k98-03-30File is not ratedDistance Formula
factor.811k98-09-05File is not ratedFactor
frac81.811k98-03-28File is not ratedDecimal to Fraction
ftin2m.811k00-10-13File is not ratedFeet+Inches to Meters
Converts measurements in mixed feet and inches to meters. For example, 5'11" is 1.80 m.
gif.812k00-07-10File is not ratedGIF2.1
Greatest Integer Function Version 2.1
graph3d.zip1k13-04-26File is not ratedGraph3D 81 v2.0
This incredible program lets you graph 3D equations on your TI-81 with an incredible amount of accuracy! Uses your current window and format settings. This program, now ported to the TI-81, is a must for any serious mathematician!
heron.811k98-03-28File is not ratedHeron's Formula (area of scalene triangle)
hist.scl.txt1k10-10-06File is not ratedHIST.SCL
Fixes Xscl so that a histogram can be drawn and then prompts you if you draw the histogram
inchgal.811k98-03-28File is not ratedGallons <-> Cubic Inches Converter
intrestc.811k98-03-30File is not ratedInterest Continously: Once Per Year
intrestn.811k98-03-30File is not ratedInterest 'n' Times
jefagrph.811k00-11-24File is not ratedJefa Graph 2
Graphprogram
jefaph.811k00-10-10File is not ratedJefa pH
pH solver.
jefasolver.811k00-09-05File is not ratedJefa Solver
Second-Grade-Equation-Solver
kilomile.811k98-03-28File is not ratedKilometers <-> Miles Converter
kvad.811k97-07-24File is not ratedQuadratic Equation Solver
lboz2kg.811k00-10-13File is not ratedPounds+Ounces to Kilograms
Converts measurements in mixed pounds and ounces to kilograms. For example, 7 lb 4 oz is 3.289 kg.
limit.811k97-07-24File is not ratedLimit of a Function
lineseg.811k98-03-30File is not ratedLine Segment
mandel.8113k97-07-24File is not ratedMandelbrot Fractal Generator
maxmin.812k97-06-22File is not ratedCalculate Max and Min
metyard.811k98-03-28File is not ratedMeters <-> Yards Converter
midpoint.811k98-03-30File is not ratedMidpoint
minquad.811k99-09-24File is not ratedMinQuad
Solves almost any regression given the data and the component functions.
mtrxswap.811k98-03-28File is not ratedMatrix Swap
mtxrot.811k97-07-24File is not ratedMatrix Rotation
newton.811k97-07-24File is not ratedNewton's Method
percent.811k00-07-20File is not ratedPercent v1.3
perimetr.813k98-09-05File is not ratedPerimeters
Perimeter solver
permutat.811k98-03-28File is not ratedPermutations
pieuler89.zip2k03-05-18File is not ratedPi: Euler's Method
This package of programs for all TI's quickly converges to pi using one of Euler's methods.
poh.811k00-11-24File is not ratedJefa pOH
pOH solver
poisson.811k00-10-13File is not ratedPoisson Probability Distribution Function
Like th 83.
polar81.zip1k04-05-11File is not ratedPolar Graphing
poly-a.811k97-07-24File is not ratedPolygon Area and Center of Gravity
polydiv.811k97-07-24File is not ratedPolynomial Divison
Polynomial Division
powroot.zip6k03-06-19File is not ratedAny Root Finder (Guess-n-Check Method)
This is simple to use. You input the number, the root you want to find (2 for square, 3 for cube, etc), and how many decimal places. It'll only show the TI's limit in decimal places, but is pretty cool nonetheless. Quickly made for every TI.
primeftr.812k98-03-30File is not ratedPrime Factors
prodroot.811k98-03-28File is not ratedProduct of the Roots
qdrtc.zip1k11-07-31File is not ratedQuadratic Formula
This program automates the quadratic formula. It displays different messages based on the value of the discriminant, such as "ONE SOLUTION" if the discriminant is zero. This program will modify variables A,B,C, and D and may also modify variables E,F, and G based on the value of the discriminant. This program occupies 207 bytes, so make sure you have sufficient space in RAM. In response to the prompts, enter constants a,b, and c from a quadratic equation of the form ax^2+bx+c=0.
quad2.811k97-07-24File is not ratedQuadratic Equation Program (graphs too)
quad.811k97-07-24File is not ratedQuadratic Equation Program
quad81.zip1k04-05-12File is not ratedQuadrametric Graphing
quadform.811k98-03-30File is not ratedQuadratic Formula
quadrad.811k02-04-09File is not ratedQuadrad v1.00 (fixed again)
Quadratic formula program for TI-81.
quadrat81.zip1k08-02-28File is not ratedQuadrat 81 v1.0 Quadratic formula solver
This is a simple and easy to use quadratic formula solver for your TI 81. Just type it into the program editor and Type in A, B, and C . Only about 150 bytes!
quadrati.811k97-07-24File is not ratedQuadratic Equation Program
quadreg.811k98-03-28File is not ratedQuadratic Regression
ramanuja.811k98-03-28File is not ratedRamanujan's Formula
This is the formula written by Srinivasa Ramanujan Iyengar that solves the answer for infinite radicals.
rand.811k97-07-24File is not ratedRandom Number Generator
range.811k97-07-24File is not ratedRange Program
simple.811k98-03-28File is not ratedSimple Interest
simpson.812k97-07-24File is not ratedSimpson's Rule Program
slope.zip1k03-02-04File is not ratedSlope
Finds the slope of coordinate geometry.
solve_eq.811k98-03-28File is not ratedEquation Solver
solver81.811k97-07-24File is not ratedEquation Solver for One Unknown Variable
sprslver.811k97-07-13File is not ratedSuper Solver
sumroots.811k98-03-28File is not ratedSum of the Roots
superqf.811k98-03-30File is not ratedSuper Quadratic Formula
sys3eq.811k00-10-20File is not ratedSystem of 3 Equations
solves a system of 3 linear equations
syseq.811k00-10-13File is not ratedSystem of 2 Equations
solves a system of 2 linear equations
table.811k97-05-28File is not ratedImproved Table Program
triangle.811k98-03-28File is not ratedArea of a Triangle
triarea.811k02-03-25File is not ratedTriarea 1.00 (fixed)
Finds the area of a triangle.
trinums.811k98-03-29File is not ratedTriangular Numbes v2.0
This is a better triangular number program than my original one. This differnce between this one and the other ones, is this ones smaller, and is also faster.
troy.811k00-10-20File is not ratedTroy weight converter
converts troy pounds and ounces to grams
vector81.811k97-07-24File is not ratedAddition of Two or More Vectors
volumes.813k98-09-05File is not ratedVolumes
Volume solver
weaselwo.811k97-07-24File is not ratedSpoke Length Calculating Program
yx.811k98-03-28File is not ratedY^X Power Solver
This is a simple Y X program that will solve for answers larger than the calculator normally would. It uses the combination of logarithms and 10 x functions to solve.. It gives the answer in scientific notation.
zdecimal.811k00-10-20File is not ratedZDecimal
changes the window settings so all of the graph coordinates are multiples of 0.2.
zero.815k97-07-24File is not ratedZero Program
zerofind.811k97-07-13File is not ratedZero Finder
zeta.zip3k09-11-01File is not ratedZeta Function
This is the zeta function, for all TI's except the TI-73.

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