Hi, I am quite new to SageMath. I wanted to use Sage to solve some easy equations and inequalities, but frequently the solve command doesn't provide any answer, sometimes the answers should be simplified, and sometimes it even gives wrong answers.
Am I doing something wrong? If sage cannot solve those simple problems, how can it be a valuable alternative to mathematica? I am copying here some examples: *1) NOT SOLVIG* in: solve(abs(x-4)==x,x) out: [x == abs(x - 4)] NOT SOLVIG (correct: x=2) *2) WRONG ANSWER* in: solve(abs(x+1)>=x,x) out: [[x == 0], [0 < x], [x < 0]] WRONG (correct: all values of R) *3) NOT SOLVING* in: solve(x^2+abs(x+1)==4,x) out: [x == -sqrt(-abs(x + 1) + 4), x == sqrt(-abs(x + 1) + 4)] NOT SOLVIG (correct: [(-1+sqrt(13))/2, (1-sqrt(21))/2]) *4) CORRECT ANSWER BUT COMPLICATED*SIMPLIFICATIONS in: solve(abs(5*x-1)>=x,x) out: [[x == (1/4)], [x == (1/6)], [x == 0], [0 < x, x < (1/6)], [(1/4) < x], [x < 0]] TOO COMLICATED (correct: [x<=(1/6)], [x>=1/4]) -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/sage-support/16dc4c1c-c8f0-4b4d-9dbb-55f896cf738an%40googlegroups.com.
