Texas Instruments Voyage 200, Руководство пользователя

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850 Appendix A: Functions and Instructions
P
4444
Rx()
MATH/Angle menu
P
4444
Rx(
rExpression
,
q Expression
)
⇒
⇒ ⇒
⇒
expression
P
4444
Rx(
rList
,
q List
)
⇒
⇒ ⇒
⇒
list
P
4444
Rx(
rMatrix
,
q Matrix
)
⇒
⇒ ⇒
⇒
matrix
Returns the equivalent x-coordinate of the
(r,
q
) pair.
Note: The q argument is interpreted as either a
degree, gradian or radian angle, according to the
current angle mode. If the argument is an
expression, you can use
ó
,
G
o r
ô
to override
the angle mode setting temporarily.
In Radian angle mode:
P
4
Rx(r,
q
)
¸
cos(
q
)
ø
r
P
4
Rx(4,60
¡
)
¸
2
P
4
Rx({
ë
3,10,1.3},{
p
/3,
ë p
/4,0})
¸
{
ë
3/2 5
ø ‡
2 1.3
}
P 4444 Ry()
MATH/Angle menu
P 4444 Ry( rExpression , q Expression )
⇒ ⇒ ⇒ ⇒
expression
P 4444 Ry( rList , q List )
⇒ ⇒ ⇒ ⇒
list
P 4444 Ry(
rMatrix
, q
Matrix
)
⇒ ⇒ ⇒ ⇒
matrix
Returns the equivalent y-coordinate of the
(r,
q ) pair.
Note: The
q
argument is interpreted as either a
degree, gradian or radian angle, according to the
current angle mode. If the argument is an
expression, you can use
ó
,
G
o r
ô
to override
the angle mode setting temporarily.
In Radian angle mode:
P
4
Ry(r,
q
)
¸
sin(
q
)
ø
r
P
4
Ry(4,60
¡
)
¸
2
ø ‡
3
P
4
Ry({
ë
3,10,1.3},{
p
/3,
ë p
/4,0})
¸
{
ë
3
ø ‡
3
2
ë
5
ø ‡
2 0.
}
part()
CATALOG
part(
expression1[
,
nonNegativeInteger]
)
This advanced programming function lets you
identify and extract all of the sub-expressions in
the simplified result of
expression1 .
For example, if
expression1
simplifies to
cos( p ù x+3):
•
The
cos()
function has one argument:
(
p ù
x+3).
•
The sum of ( p ù x+3) has two operands: p ù x
and 3.
•
The number 3 has no arguments or operands.
•
The product p ù x has two operands: p and x.
•
The variable x and the symbolic constant
p
have no arguments or operands.
If x has a numeric value and you press
¥ ¸
,
the numeric value of p ù x is calculated, the result
is added to 3, and then the cosine is calculated.
cos()
is the top-level operator because it is
applied last .
part(
expression1
)
⇒ ⇒ ⇒ ⇒
number
Simplifies expression1 and returns the number of
top-level arguments or operands. This returns 0 if
expression1
is a number, variable, or symbolic
constant such as p , e , i , or ˆ .
part(cos(
p ù
x+3))
¸
1
Note: cos(
p ù
x+3) has one argument.
part(
expression1
, 0)
⇒ ⇒ ⇒ ⇒
string
Simplifies
expression1
and returns a string that
contains the top-level function name or operator.
This returns
string( expression1 )
if
expression1
is a
number, variable, or symbolic constant such as
p
,
e , i , or
ˆ
.
part(cos(
p ù
x+3),0)
¸
"cos"