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It is an improvement upon previous models of calculators, and the Silver Edition is just a fancy way of saying it is better. The TI 84 plus Silver Edition is a graphing calculator with a relatively large memory capacity and relatively fast processor.
To access the preloaded games on the TI-84 Plus Silver Edition calculator, you will need to press the "APPS" button on the calculator. This will bring up a menu of applications that are preloaded on the device. From there, you can navigate through the list of applications to find and select the preloaded games you wish to play. Once you have selected a game, follow the on-screen instructions to start playing.
Press second (2ND) and then memory (MEM, above +). Then select the seventh option, Reset.... In order to delete everything, use the arrow keys to select ALL on the top and then press enter to select All Memory....
For example, if you want to set variable L to 8:Type the number you want to store to the variable. Then press STO> to get an arrow. Then type L (Press ALPHA L [above ")"]). You should see:8->L or 8[arrow]L. Press ENTER and your variable will be set.This will also work in a line of programming, but you don't have to press ENTER, just run the program.
The arrow keys are near the upper left corner of the keypad. If you want to type an arrow, use the store key. It looks like this: STO>.