Texas Instruments TI-80 Manual Book page 63

R8Pr (
R8Pq(
P8Rx(
P8Ry(
Note: When converting from one coordinate system to the
other, be sure that the angle mode setting,
RADIAN , is appropriate for your angle measurements. (Press
3 to check the current setting.)
R8Pr( ( ANGLE , item 3) converts the given rectangular
coordinates to polar coordinates and returns
( , item 4) converts the given rectangular
R8Pq( ANGLE
coordinates to polar coordinates and returns
Both X and Y can be lists.
R8Pr( X , Y )
R8Pq( X , Y )
RADIAN Mode
( , item 5) converts the given polar coordinates
P8Rx( ANGLE
to rectangular coordinates and returns
P8Ry( ( ANGLE , item 6) converts the given polar coordinates
to rectangular coordinates and returns
Both R and q can be lists.
q
P8Rx( R , )
q
P8Ry( R , )
Mode
RADIAN
Math, Angle, and Test Operations 2-15
DEGREE or
r .
q .
.
x
y .