Nice! 2009/1/12 Henry Rich <[email protected]>
> 570 470 %. 2 2 $ 3 5 5 3 > 40 90 > > Henry Rich > > Björn Helgason wrote: > > I was helping my little daughter with algebra and one of the problems was > to > > figure out x and y from following > > > > 3x+5y=570 > > 5x+3y=470 > > > > Actually x was apples and y bananas > > > > Anyway I am thinking is there a way to stick this here above into J to > > figure out x and why? > > > > The solution is straight forward enough > > > > 2y=100+2x > > y=50+x > > 5x+150+3x=470 > > 8x=320 > > x=40 > > y=90 > > > > But how to do it in J > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm -- Björn Helgason, Verkfræðingur Fugl&Fiskur ehf, Þerneyjarsundi 23, Hraunborgum Po Box 127,801 Selfoss , t-póst: [email protected] gsm: +3546985532 Landslags og skrúðgarðagerð, gröfuþjónusta http://groups.google.com/group/J-Programming Tæknikunnátta höndlar hið flókna, sköpunargáfa er meistari einfaldleikans góður kennari getur stigið á tær án þess að glansinn fari af skónum /|_ .-----------------------------------. ,' .\ / | Með léttri lund verður | ,--' _,' | Dagurinn í dag | / / | Enn betri en gærdagurinn | ( -. | `-----------------------------------' | ) | (\_ _/) (`-. '--.) (='.'=) `. )----' (")_(") ☃☠ ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
