Introduction
This program plots the slope field for the differential equation in the
form .
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 SLOPEF.86p
The Program
:ClDrw | {ClDrw is in GRAPH under Draw} |
:FnOff | {FnOff is in GRAPH under Vars} |
:7*(xMax-xMin)/83H | {xMax, xMin are in GRAPH under Wind} {The arrow is STO} |
:7*(yMax-yMin)/55K | {yMax, yMin are in GRAPH under Wind} |
:1/(0.4*H)^2A | |
:1/(0.4*K)^2B | |
:xMin+0.5*Hx | {x is x-VAR} |
:yMin+0.5*KZ | |
:1L | {The 1 is a one} |
:Lbl P | {Lbl is in PRGM under CTL} |
:1J | |
:Zy | {y is in GRAPH under Vars} |
:Lbl Q | |
:y1T | {y1 is in CATLG-VARS under EQU} |
:1/(A+B*T^2)C | is the square root button. |
:T*CS | |
:Line(x-C,y-S,x+C,y+S) | {Line is in GRAPH under Draw} |
:Z+J*Ky | |
:IS>(J,8) | {IS> if in PRGM under CTL} |
:Goto Q | {Goto is in PRGM under CTL} |
:x+Hx | |
:IS>(L,12) | |
:Goto P |
Running the Program
You will need to enter a function f(x,y) into y1 and adjust the WINDOW accordingly
before running the program. You can use the x and y shown in the
GRAPH menu.