SLOPE FIELD - TI 89 or TI 92

This program plots the slope field for the differential equation in the form ${\hbox{dy}\over \hbox{dx}}=\hbox{f(x,y)}$.
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.

If you have a TI Connectivity Cable, you can download the program main.slopef.89p

The Program
:slopef( ) {This will already appear if you named the program slopef}
:Prgm {This will already appear}
:FnOff {FnOff is in the CATALOG menu}
:setMode("Graph", "Function") {setMode is in the F6 menu under D}
:7*(xmax-xmin)/83$\to$ {xmax xmin can be typed in letter by letter} {$\to$ is STO}
:For k,1,12 {For EndFor is in the F2 menu} {The 1 is a one}
:For j,1,8
:y1(x)$\to$ {y1 is the Y followed by a 1}
:1/$\sqrt{}$(a+b*t^2)$\to$ {$\sqrt{}$ is square root}
:Line x-c,y-s,x+c,y+s {Line is in the CATALOG menu}
:EndPrgm {This will already appear}

Running the Program
You will need to enter a function  f(x,y) into y1 and adjust the WINDOW accordingly before running the program.