IV. Math Menu

    B. 2:Angle    

 Press . Use and
to select the menu of choice.

Not all options are given in the entry format. Options that are used frequently will be included, but others are omitted from the table. For a complete format listing, you can check the TI-89 manual. Results in complex mode are not covered. They can be found in the manual.

Operation
Entry Format
Explanation
Screen


Also

In Radian angle mode, recognizes
the expression as being a
degree expression.

In Degree angle mode, recognizes
the expression as being a
radian expression.
3:P>Rx

P>Rx(r expression, expression)
P>Rx(r List, List)
P>Rx(r matrix, matrix)

Used in conversion of polar
coordinates to rectangular
coordinates . This will convert
the polar to the equivalent
rectangular x-coordinate.
4:P>Ry P>Ry(r expression, expression)
P>Ry(r List, List)
P>Ry(r matrix, matrix)
Used in conversion of polar
coordinates to rectangular
coordinates. This will convert
the polar to the equivalent
rectangular y-coordinate.
5:R>Pr

R>Pr(x expression, y expression)
R>Pr(xList, yList)
R>Pr(xMatrix, yMatrix)

Returns the equivalent
r-coordinate of the (x,y) pair
arguments.
6:R>P R>P(x expression, y expression)
R>P(xList, yList)
R>P(xMatrix, yMatrix)
Returns the equivalent
-coordinate of the (x,y) pair
arguments.
7:
Also
[radius, angle] Returns coordinates as a vector.
8:DMS expression>DMS
list>DMS
matrix>DMS
Interprets the argument as an
angle and displays the equivalent
DMS number.
9:>DD number>DD
list>DD
matrix>DD
Returns the decimal equivalent of
the argument. The symbols for
degrees, minutes, seconds are
found by pressing:
and and .

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