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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 1
output changed
*One line at a time please!
**Or, press EXE to re-
execute everything.
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*10
(note that any # raised to the 0 power equals 1 except 0
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
2 is 101=1*2
+0*2
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
n on the
st
b. Click the 1
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
1
h. Note 10b=1*2
+0*2
=2 (base 10)
ClassPad 101 Lesson 2 CASIO COPYRIGHT
st
1
0
+2
. There are also many other bases that are common.
0
CASIO MRD Center, Portland, Oregon, USA
Just tap it!
0
Notice the status bar
shows Bin (short for
Binary).
2011 Author: Diane Whitfield
2
1
+3*10
+4*10
).
10
0
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