Inverse multiple resection by angles

For determination of the coordinates x,y of Р point, on it the fan of independent equal-point directions onto starting points is measured.

Adjustment of inverse multiple resection is executed by a method of the least squares parametrically

Example of data input for the "Inverse multiple resection by angles" (file with extension *.тхт).

.RES

// FORMAT N X Y G M S

.BEGIN

a   10363.643  11818.121      0

b    4530.066   11462.410    75 41 14.00

c    7982.270    7546.304   140 38 36.00

d  10997.723    5684.057   219 54 30.00

e  12645.874     8724.223   284 51 56.00

.END