No implementation found for style `ifthen'

No number for "<SPANCLASS="SMALL">VisualrepresentationoftheGLS-to-SFLtransformation.Inalltheplots,thegreyregioncoversthesameareaonsky.<SPANCLASS="textbf">Topleft</SPAN>:thegreyregionsymbolizesa<SPANCLASS="MATH">$20times12$</SPAN>squaredegreesinthe<SPANCLASS="MATH"></SPAN>2DAIPS-GLSprojectedplane.Bluelinesshowtheabscissaandordinateorigins.ThereisnotransformationpossibletogotoanativesphereintheCG02formalism.<SPANCLASS="textbf">Topright</SPAN>:thereferencepointisshiftedtotheEquator,</SPAN><SPANCLASS="SMALL"><EM>i.e.</EM>bya<SPANCLASS="MATH"></SPAN>shift(<SPANCLASS="MATH"></SPAN>inthisexample).TheequationsnowmatchtheFITS-SFLformalismat<SPANCLASS="MATH"></SPAN>.<SPANCLASS="textbf">Bottomleft</SPAN>:theareaisSFL-unprojectedto<SPANCLASS="MATH"></SPAN>sphericalcoordinatesonthe3Dnativesphere.Theequatorandzeroreferencemeridianareshowningreen.Thefiducialpoint<SPANCLASS="MATH"></SPAN>oftheSFLprojectionhascoordinates<SPANCLASS="MATH"></SPAN>bydesign.<SPANCLASS="textbf">Bottomright</SPAN>:thewholeskyorientationiskeptthesameasbefore,butthecoordinatesystemrepresentedisnowthe3Dcelestialsphere.Theequatorandzeroreferencemeridianareshowninred.<SPANCLASS="MATH"></SPAN>is<SPANCLASS="MATH"></SPAN>inthisexample.</SPAN>"
