N5 G00 X20.Z2 ;
N10 G01 Z-30..F0.2 ;
N15 X43.094 Z-50. ;
N20 G02 X51.754 Z-52.5 I4.33 K2.5 ;
N25 G01 X70. ;
N30 Z-100. ;
In this example the circular interpolation is programmed using interpolation parameters instead of the radius.
The I & K values are given as incremental data. Since the centre point is located in positive direction in both the axes with respect to the start point they have positive values.