Issue 1377 in sympy: MathML output for Integral and Differentiate invalid

Updates: Labels: -NeedsReview Comment #10 on issue 1377 by ondrej.certik: MathML output for Integral and Differentiate invalid http://code.google.com/p/sympy/issues/detail?id=1377 I reviewed here: http://groups.google.com/group/sympy-patches/browse_thread/thread/4ee78ead34671222 patc

Issue 1398 in sympy: solve(1/(5+x)**(S(1)/5)-9, x) fails

Comment #1 on issue 1398 by smichr: solve(1/(5+x)**(S(1)/5)-9, x) fails http://code.google.com/p/sympy/issues/detail?id=1398 I've been working on tuning up the solve routine and my modifications pass all the solver tests, solve the equations that I raised as issues, and solves this present c

Issue 1397 in sympy: solve fails for a sum of two fractions

Comment #2 on issue 1397 by smichr: solve fails for a sum of two fractions http://code.google.com/p/sympy/issues/detail?id=1397 With the updates (rough) guess_ of issue 1398 I get >>> A = x**2/(7-x) >>> A.diff(x) 2*_x/(7 - _x) + _x**2/(7 - _x)**2 >>> solve(A.diff(x), x) Got strategy 1 >>> 1 Got

Issue 1380 in sympy: solve(2*x/(x+2)-1,x) gives error

Comment #2 on issue 1380 by smichr: solve(2*x/(x+2)-1,x) gives error http://code.google.com/p/sympy/issues/detail?id=1380 OK with 1398 modification of solver >>> solve(2*x/(x+2)-1,x) Got strategy 1 >>> 1 Got strategy 0 >>> 0 [2] -- You received this message because you are listed in the owner

Issue 1367 in sympy: solve(exp(x)/(8*(a + x)**2), x) fails

Comment #3 on issue 1367 by smichr: solve(exp(x)/(8*(a + x)**2), x) fails http://code.google.com/p/sympy/issues/detail?id=1367 1398 modification of solver leads to no solution if the non-zeroing exponent is removed. >>> solve(1/(8*(a + x)**2), x) Got strategy 1 >>> 1 Got strategy 0 >>> 0 [] Th

Issue 1398 in sympy: solve(1/(5+x)**(S(1)/5)-9, x) fails

Comment #2 on issue 1398 by Vinzent.Steinberg: solve(1/(5+x)**(S(1)/5)-9, x) fails http://code.google.com/p/sympy/issues/detail?id=1398 Great! Did you notice Fabian's changes (he also wrote guess_solve_strategy())? http://groups.google.com/group/sympy-patches/browse_thread/thread/7f0eb45d9dc

Issue 1363 in sympy: solve(-3*a/x**(S(1)/2), x) fails

Comment #1 on issue 1363 by smichr: solve(-3*a/x**(S(1)/2), x) fails http://code.google.com/p/sympy/issues/detail?id=1363 1398 modification works here >>> solve(-3*a/x**(S(1)/2), x) Got strategy 4 >>> 4 Got strategy 0 >>> 0 [] -- You received this message because you are listed in the owner or

Issue 1338 in sympy: assert poly is not None in solve

Comment #2 on issue 1338 by smichr: assert poly is not None in solve http://code.google.com/p/sympy/issues/detail?id=1338 The 1398 modification works but a spurious root (r==0) is introduced (I believe) when finding the common denominator. >>> r=symbols('r') >>> solve(diff((a/r)**12-2*(a/r)**

Issue 1325 in sympy: solve(2**x-5*x, x) gives assertionerror

Comment #5 on issue 1325 by smichr: solve(2**x-5*x, x) gives assertionerror http://code.google.com/p/sympy/issues/detail?id=1325 1398 modification of solver gives >>> solve(2**x-5*x, x) Got strategy 5 >>> 5 [-LambertW(-log(2)/5)/log(2)] The tsolve bugs remain. -- You received this message beca

Issue 1325 in sympy: solve(2**x-5*x, x) gives assertionerror

Comment #6 on issue 1325 by smichr: solve(2**x-5*x, x) gives assertionerror http://code.google.com/p/sympy/issues/detail?id=1325 Also, attempting solve(exp(log(5)*x)-2**x, x) with the 1398 solver fails: >>> tsolve(exp(log(5)*x)-2**x, x) Got strategy 5 >>> 5 Got strategy 0 >>> 0 Traceback (most