Steren CAL-150 Instructivo De Uso página 186

Coordinate Transformation
This calculator allows you to convert between rectangular
coordinates and polar coordinates.
The results of the operation are stored in variable memory
I and J. The information on memory I is displayed fi rst. In
order to see the information contained in memory J, press
the button.
Polar coordinates can be calculated within a
-180° 180°. The calculation range is the same for
radians and gradients.
These operations cannot be realized in Base-N mode.