Changes

*If any of the co-ordinates (x1,y1,x2,y2) is non-numeric, Calci returns an error message.

*If any of the co-ordinates (x1,y1,x2,y2) is non-numeric, Calci returns an error message.

*If the function is not available, then load the geometry by using 'load geometry' command.

*If the function is not available, then load the geometry by using 'load geometry' command.

== Examples ==

== Examples ==

| class="sshl_f    " | 9.219544457292887

| class="sshl_f    " | 9.219544457292887

|}

|}