**Math Programs** are programs made to perform mathematic calculations or perform other functions. TI-BASIC is capable of creating programs to perform virtually any mathematical function.

## Program Edit

**Needed Commands:** →, Input, Output(, ClrHome

For our example, we are going to make a simple program that will peform the quadratic equation. In other words, when the A, B, and C variables from a quadratic equation are inputed, it will solve for X. We start with the familiar quadratic equation:

prgm QUADRAT :(-B+√(B^{2}-4AC))/(2A)→X :(-B-√(B^{2}-4AC))/(2A)→Y

Notice that because there is no +/- symbol in TI-BASIC, you must create two separate equations in case the solution is negative. The rest of the program is fairly simple.

:ClrHome :Output(1,1,"QUADRATIC EQUATE :Output(2,1,"---------------- :Input "A=",A :Input "B=",B :Input "C=",C :ClrHome :Output(1,1,"X= :Output(1,3,X :Output(2,1,"OR :Output(2,3,Y

With only these 13 lines of code, you have created a very powerful program that can save you a lot of time. Math programs can be created to do a wide array of tasks, including:

- Do conversions from Metric to English measurements
- Solve equations that come up a lot (much like the Quadratic Equation
- Quickly find the average in a set of numbers