2. Status Bar and One Line at a Time
a.Notice your status bar
b.Click Decimal to toggle it back to Standard
c.Click on your first math line and then the 
button
d.Notice only the 1st output changed
*One line at a time please!
**Or, press EXE to re- execute everything.
Just tap it!
3. Changing Base
What does “base” mean? It has to do with place value. Well, as you know, 234=2*100+3*10+4. This can also be written as 234=2*102+3*101+4*100 (note that any # raised to the 0 power equals 1 except 00).
We work in base 10, but computers often work in base 2 or base 16. Base 2 is called binary and base 16 is called hexadecimal. For example, 5 in base 2 is 101=1*22+0*21+20. There are also many other bases that are common. You could really write a number in any base you want to!
For now, we will experiment with base 2 (binary) only. You may someday find this useful! It is definitely fun to think in a different base.
a.Open Main and clear the window
b.Click the 1st n on the toolbar and select 
c.Input 101+11 and press EXE
d.Input 2 and press EXE
e.Bin mode (base 2) only knows 0 and 1!
f.Change 2 to 2d to let the software know you mean base 10
g. Press EXE
h. Note 10b=1*21+0*20
=2 (base 10)
Notice the status bar shows Bin (short for Binary).
ClassPad 101 Lesson 2 CASIO COPYRIGHT ♥ 2007 Author: Diane Whitfield | 10 |
CASIO MRD Center, Portland, Oregon, USA |
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