Hi Bryan,

`Ah, I see. Now, that is a big problem since programming in general is`

`based upon Algebra. in Algebra they use variables such as x instead of a`

`number to perform some kind of math. Well, in programming the concept`

`applies throughout the development process, not just with math, but in`

`comparing states of this or that. Though, one difference in programming`

`instead of a simple variable like x you can give your variables real`

`names like health, weapon, and ammo.`

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if (weapon ==1) { FirePistol(); } if (weapon == 2) { FireMagnum(); } if (weapon == 3) { FireShotgun(); }

`If I wanted to I could have used a more Algebra like expression and`

`removed the word weapon and replaced it with x. However, that would make`

`the code less self-explanitory, but no matter which way you want to`

`write it the concept of using variables instead of numbers is based on`

`Algebra. It is just a slightly more safisticated way to do an`

`expression. For example let us try a simple math formula.`

3 = x+2

`We don't know what x is here but we know the answer is 3 and one of the`

`numbers is two. So we would rewrite the formula`

x = 3-2 which has the answer 1. In programming we can write a simple formula like z = x+y and plug numbers into x and y and return the result for z just as easily. Smile. Bryan Peterson wrote:

Well the Algebra is the very thing I hae issues with, particularlywhen there are letters involved. I just never could get the hang ofit. It's quite a long story actually.

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