Testing the traingle CDI routines discussed in
https://doi.org/10.1364/OE.414341
and https://opg.optica.org/oe/fulltext.cfm?uri=oe-29-10-14394&id=450507
Testing triangle cdi
Testing the traingle CDI routines discussed in
https://doi.org/10.1364/OE.414341
and https://opg.optica.org/oe/fulltext.cfm?uri=oe-29-10-14394&id=450507
Testing triangle cdi