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Rectangular/
polar coordinate
conversion
This calculator is equipped with rectangular coordinates and polar
coordinates conversion capabilities.
Rectangular to polar coordinate conversion functions
Conversion formulas: r = (x
3 xy→r(
xy→r( x coordinate, y coordinate )
Returns polar coordinate
radius value from X-Y
rectangular coordinates.
xy→θ( x coordinate, y coordinate )
4 xy→θ(
Returns polar coordinate θ
value from X-Y rectangular
coordinates.
The following ranges are
used to find θ.
Polar to rectangular coordinate conversion functions
Conversion formulas: x = rcos θ , y = rsin θ
rθ→x( r coordinate, θ coordinate )
5 rθ→x(
Returns rectangular coordi-
nate X value from r-θ polar
coordinates.
Chapter 3: Manual Calculations
x
y
, θ = tan
2
+
2
1/2
y
)
Degree mode: 0 ≤ |θ| ≤ 180
Radian mode: 0 ≤ |θ| ≤ π
Grad mode: 0 ≤ |θ| ≤ 200
r
θ
-1
(y/x)
49
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