'=': new parameter for solve(arg1,arg2,'=') - Printable Version +- HP Forums (https://www.hpmuseum.org/forum) +-- Forum: HP Calculators (and very old HP Computers) (/forum-3.html) +--- Forum: HP Prime (/forum-5.html) +--- Thread: '=': new parameter for solve(arg1,arg2,'=') (/thread-10918.html) '=': new parameter for solve(arg1,arg2,'=') - compsystems - 06-16-2018 02:30 AM The hp-prime CAS Software Version: 2.0.0.13865 (2018 07 06) now solve accepts a new parameter to visualize the most explicit answers =) Examples without '=' 0: [solve((x+4) = 2,x), solve((-3+x) = -4,x),solve((3+x) = 4,x), solve((x+3) = 3,x)] returns the solution -2 -1 1 0 with '=' 1: [solve((x+4) = 2,x,'='), solve((-3+x) = -4,x,'='),solve((3+x) = 4,x,'='), solve((x+3) = 3,x,'=')] returns the solution set x = -2 x = -1 x = 1 x = 0 2: solve([(x+y) = 2,(x-y) = 4],[x,y],'=') returns [x = 3,y = -1] 3: solve([(x+y) = 2,(x-y) = 4],[y,x],'=') [y = -1, x = 3] Although the format converter cmd (list2exp) has not yet been incorporated on hp-prime =( list2exp cmd: list of solutions to boolean expression XCAS 4: list2exp( solve([(j+l) = 2,(j-l) = 4],[j,l]),[j,l]) returns j=3 and l=-1 http://www.wolframalpha.com/input/?i=solve(%5B(j%2Bl)+%3D+2,(j-l)+%3D+4%5D,%5Bj,l%5D) 5: list2exp( solve([(j+l) = 2,(j-l) = 4],[l,j]),[l,j]) returns l=-1 and j=3 http://www.wolframalpha.com/input/?i=solve(%5B(j%2Bl)+%3D+2,(j-l)+%3D+4%5D,%5Bl,j%5D) 6: list2exp(solve([ y = x^2, y = 2*x + 3 ],[y,x]),[y,x]) returns ( (y=9) and (x=3) ) or ( (y=1) and (x=-1) ) http://www.wolframalpha.com/input/?i=solve(%5B+y+%3D+x%5E2,+y+%3D+2*x+%2B+3+%5D,%5By,x%5D) 7: solve([ y = x^2, y = 2*x + 3 ],[y,x]) [[9,3],[1,-1]] still not working for desolve desolve(((y')'+y) = 0,y) returns G_0*cos(x)+G_1*sin(x) desolve(((y')'+y) = 0,y,'=') => y(x)=G_0*cos(x)+G_1*sin(x) http://www.wolframalpha.com/input/?i=DSo...x%5D,+x%5D returns y[x]->C[1]*Cos[x] + C[2]*Sin[x]