Since this is a fairly industry-specific format, and the verbs consequently are use-case-specific, it might be cleaner (and easier) to create a JAL addon for these & related surveying utilities.
-Dan -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Tom Arneson Sent: Friday, June 03, 2011 7:18 AM To: [email protected] Subject: [Jprogramming] Suggested addtion to addons/math/misc/trig.ijs In land surveying angles in degrees, minutes, and seconds are often entered and stored in files as a decimal number with the first 2 digits right of the decimal point representing minutes and the following digits representing seconds and decimal seconds. I've used these verbs for years although I named them rtodms dmstor or r2dms dms2r. After I saw the verbs dfr and frd in trig.ijs, I decided to follow that convention and renamed them as rfdms and dmsfr. I'm planning to use J Software in my land surveying technology courses at Saint Paul College, a community & technical college (www.saintpaul.edu ) and would like my students to have these verbs at hand for use. I'd like to see the following sentences added to addons/math/misc/trig.ijs NB. ========================================================= NB. d.mmss indicates degrees minutes and seconds coded into a decimal number NB.*dmsfr v d.mmss from radians NB.*rfdms v radians from d.mmss dmsfr=: ** 0.0001 * 0 100 100 #. 0 60 60 #: 648000p_1 * | rfdms=: 1r648000p1 *** 0 60 60 #. 0 100 100 #: 10000 *| NB. ========================================================= ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
