Display
Comments
To the left is a picture displaying and naming the keys (some with a brief
description) that you will need for this handout. Special keys will be
referred to by name in a blue typeface, i.e. FRAC means to hit the key
labeled fraction in the picture to the left.
You need to select run from your main menu to perform
these operations.
Section 1: Fractions
We are going to add fractions (subtraction, multiplication and division
work in the same manner). We want to add 1/2 +1/3.
key strokes: 1 FRAC 2 + 1 FRAC 3 EXE
result: 5/6
The decimal approximation is obtained by using the FtoD key.
key strokes: FtoD
result: 0.8333333333
We can also use the same set of keys to do arithmetic with mixed fractions.
key strokes:
4
FRAC 1 FRAC 5 - 1
FRAC 3 FRAC 4 EXE
result: 2 9/20
Section 2: Assignment Statement
We are going to evaluate the expression 2x2-2x+5 at x=5.
to make x=5: 4
STORE INPUT EXE
to evaluate the expression at x=5:
2
INPUT x2
-
2 INPUT
+ 5 EXE
result: 45
Next we want to evaluate the same expression at x= -3.
key strokes: (-)
3 STORE INPUT
EXE
recall the expression: AC/ON
UARROW UARROW
now evaluate it: EXE
result: 29
Section 3: Concatenation
The ":" allows two or more commands to be put together on the same line.
First we have to get the menu that has the ":"
key strokes: SHIFT
PRGM
The arrow at the bottom right
of the screen indicates further choices if we use the
F6 key.
key strokes: F6
F5
This is going to allow us to evaluate the expression 2x2-2x+5
at x=5 with one line.
Clear your screen and exit before proceeding.
key strokes: 5 STORE
INPUT SHIFT PRGM F6
F5 2 INPUT
x2 - 2
INPUT + 5
EXE
result: 45
We can bring back the last
entry and edit the line to input -2.75 for x.
key strokes: AC/ON
UARROW
LARROW (hit
this one 13 times)
(-) SHIFT
INS
2 . 7 5
EXE
result: 25.625
After doing a calculation hiting AC/ON and UARROW (as many times as needed) allows you to recall many previous expressions that you have typed.