P-Rx Math/Angle Menu; P-Ry Math/Angle Menu; Part Catalog - Texas Instruments TITANIUM TI-89 User Manual

P4 4 4 4 Rx()
MATH/Angle menu
rExpression
P4 4 4 4 Rx(
rList List
P4 4 4 4 Rx( , q
rMatrix
P4 4 4 4 Rx( , q
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 ,
the angle mode setting temporarily.
P4 4 4 4 Ry()
MATH/Angle menu
rExpression
P4 4 4 4 Ry(
rList List
P4 4 4 4 Ry( , q
rMatrix
P4 4 4 4 Ry( , q
Returns the equivalent y-coordinate of the
(r, q) pair.
Note: The q argument is interpreted as either a
degree, radian or gradian angle, according to the
current angle mode. If the argument is an
expression, you can use ó ,
the angle mode setting temporarily.
part()
CATALOG
expression1
part(
This advanced programming function lets you
identify and extract all of the sub-expressions in
the simplified result of
For example, if
cos(pù x+3):
The
cos()
(pù x+3).
The sum of (pù x+3) has two operands: pù x
and 3.
The number 3 has no arguments or operands.
The product pù 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 pù x is calculated, the result
is added to 3, and then the cosine is calculated.
is the top-level operator because it is
cos()
applied last.
expression1
part(
Simplifies
top-level arguments or operands. This returns 0 if
expression1
constant such as p,
expression1
part(
Simplifies
contains the top-level function name or operator.
This returns
number, variable, or symbolic constant such as p,
e i , or ˆ.
,
Appendix A: Functions and Instructions
) ⇒ ⇒ ⇒ ⇒
Expression expression
, q
) ⇒ ⇒ ⇒ ⇒
list
) ⇒ ⇒ ⇒ ⇒
Matrix matrix
G
o r ô to override
) ⇒ ⇒ ⇒ ⇒
Expression expression
, q
) ⇒ ⇒ ⇒ ⇒
list
) ⇒ ⇒ ⇒ ⇒
Matrix matrix
G
o r ô to override
nonNegativeInteger
[ ]
, )
expression1
simplifies to
expression1
function has one argument:
) ⇒ ⇒ ⇒ ⇒
number
expression1 and returns the number of
is a number, variable, or symbolic
, or ˆ.
e , i
, 0) ⇒ ⇒ ⇒ ⇒
string
and returns a string that
expression1
if
expression1
string( )
In Radian angle mode:
P 4 Rx(r, q ) ¸
P 4 Rx(4,60 ¡ ) ¸
P 4 Rx({ ë 3,10,1.3},{ p /3, ë p /4,0}) ¸
In Radian angle mode:
P 4 Ry(r, q ) ¸
P 4 Ry(4,60 ¡ ) ¸
P 4 Ry({ ë 3,10,1.3},{ p /3, ë p /4,0}) ¸
.
¥ ¸ ,
part(cos( pù x+3)) ¸
Note: cos(pù x+3) has one argument.
part(cos( pù x+3),0) ¸
is a
expression1
cos( q ) ø r
{
ë 3/2 5 ø ‡ 2 1.3
sin( q ) ø r
2 ø ‡ 3
{
ë 3 ø ‡ 3
ë 5 ø ‡ 2 0.
2
"cos"
2
}
}
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