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Chapter 5: Advanced Calculations — Advanced Keyboard
Rectangular to polar coordinate conversion functions
Conversion formulas: r = (x
2
+ y
2
)
1/2
,
θ
=
tan
-1
(y/x)
3 xy→r( xy→r(
x coordinate, y coordinate
)
Returns polar
coordinate radius
value from X-Y
rectangular coordi-
nates.
4 xy→θ(xy→θ(
x coordinate, y coordinate
)
Returns polar
coordinate θ value
from X-Y rectangular
coordinates.
The following ranges
are used to find θ.
Degree mode: 0 ≤ |θ| ≤ 180
Radian mode: 0 ≤ |θ| ≤ 2π
Gradient mode: 0 ≤ |θ| ≤ 200
Polar to rectangular coordinate conversion functions
Conversion formulas: x = rcos
θ
, y = rsin
θ
5 rθ→x( rθ→x(
r coordinate,
θ
coordinate
)
Returns rectangular
coordinate X value
from r-θ polar
coordinates.
6 rθ→y( rθ→y(
r coordinate,
θ
coordinate
)
Returns rectangular
coordinate Y value
from r-θ polar
coordinates.