Dominic Michaelis
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 Feb 9 awarded Famous Question Oct 13 awarded Popular Question Oct 2 comment DSolve gives an empty solution set to a solvable ODE @user58955 well but it could warn you that the result may only be global, it even fails to check it correctly (which is easy because calculating derivatives is easy) Oct 2 awarded Quorum Oct 2 comment DSolve gives an empty solution set to a solvable ODE I can read it now, but the solutions aren't totally correct. And could you tell why it gives these result, and why my version doesn't give them? Oct 2 comment DSolve gives an empty solution set to a solvable ODE @chuy I tried it and now I am even more confused, it gives the same wrong answer as maple, and another one which does have a negative derivative which is totally impossible Oct 2 comment DSolve gives an empty solution set to a solvable ODE I can't read what is in the box, the maple answer is only a local solution and is wrong for $x\in(-\infty,0)$. Indeed i am more interessted what makes this behaviour than the actual result of the ode Oct 2 comment DSolve gives an empty solution set to a solvable ODE @belisarius the ode is autonomous so the solutions are always monotone, here it is monotone increasing but that doesn't help for $t\to -\infty$ Oct 2 asked DSolve gives an empty solution set to a solvable ODE Jul 7 accepted Are variables always assumed to be real in Jordan Decomposition? May 4 comment Are variables always assumed to be real in Jordan Decomposition? @DanielLichtblau yeah but there is no tag like "mathematica behaves different to what i expect" :) May 4 awarded Curious May 3 awarded Citizen Patrol May 3 awarded Commentator May 3 comment Are variables always assumed to be real in Jordan Decomposition? But the form is unique up to Permutation of the blocks, here one time we have a diagonal Matrix and one time, we don't have, that is impossible May 3 asked Are variables always assumed to be real in Jordan Decomposition? Feb 14 awarded Yearling Feb 12 awarded Notable Question Sep 18 awarded Popular Question May 3 asked What does the Error Message in DSolve really mean?