Casio ALGEBRA FX 2.0, User Manual

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19990401
k k
k k k
Manual Formula and Parameter Input
You can use the function menus,
K
key, and
J
key in combination to input formulas and
parameters as described below.
•
3
(EQUA)
b
(INEQUA)
• { > } / { < } / {
t t t t t
} / {
s s s s s
} ... {inequality}
•
K
key
• {
!
}
/
{
Abs
}
/
{
x
!
}
/
{
sign
} ... {infinity}/{absolute value}/{factorial}/{signum function*
1
}
• {
HYP
} ... {hyperbolic}/{inverse hyperbolic} functions
•
{sinh}/{cosh
}
/
{
tanh
}
/
{
sinh
–1 }
/
{
cosh
–1 }
/
{
tanh
–1 }
•
J
key
• {
Y
}
/
{
r
}
/
{
X
t
}
/
{
Y
t
}
/
{
X
} ... input of graph memory {Y}/{
r
}/{X
t
}/{Y
t
}/{X}
k
Formula Memory
The CAS Mode has 28 formula variables. Variable names are the letters A through Z, plus
r
,
and
"
. CAS Mode formula variables are independent of standard value variables.*
2
Example To assign a formula that differentiates sin(X) at X (cos(X)) to variable A
2
(CALC)
b
(diff)
sv ,
v ) a av
(A)
w
7-1-3
Using the CAS (Computer Algebra System) Mode
1 (real number,
A
> 0)
–1 (real number,
A
< 0)
* 1
signum
(
A
)
A
(
A
= imaginary number)
|
A
|
Undefined (
A
= 0)
*
2
Use the approx command before inputting to
register a value to a general variable.
Example: approx 1
R
A