Issue 1498 in sympy: Implement symbolic lcm, gcd

Status: New Owner: plaes800 Labels: Type-Defect Priority-Medium New issue 1498 by plaes800: Implement symbolic lcm, gcd http://code.google.com/p/sympy/issues/detail?id=1498 There is currently no symbolic lcm (least common multiplier) and gcd (greatest common divisor). -- You received this mes

Issue 1497 in sympy: (x+y)/-z does not automatically expand to (-x - y)/z

Comment #1 on issue 1497 by asmeurer: (x+y)/-z does not automatically expand to (-x - y)/z http://code.google.com/p/sympy/issues/detail?id=1497 This is another part of this that I did not consider and I do not think my patch addresses: >>> print -((x+y)/z) -(x + y)/z -- You received this m

Issue 1497 in sympy: (x+y)/-z does not automatically expand to (-x - y)/z

Updates: Status: Accepted Comment #2 on issue 1497 by ondrej.certik: (x+y)/-z does not automatically expand to (-x - y)/z http://code.google.com/p/sympy/issues/detail?id=1497 I think the minus should be working. The patch seems to be the correct fix for this. The tests should be exa

Issue 1498 in sympy: Implement symbolic lcm, gcd

Comment #1 on issue 1498 by asmeurer: Implement symbolic lcm, gcd http://code.google.com/p/sympy/issues/detail?id=1498 Could you give more specific examples of what such functions would return? And does together() do either of these? -- You received this message because you are listed in the

Issue 1493 in sympy: factor a minus 1 out of fractions in simplify

Comment #9 on issue 1493 by ryanlists: factor a minus 1 out of fractions in simplify http://code.google.com/p/sympy/issues/detail?id=1493 So, I think I fixed this. test_solvers.py has been modified and all tests pass. There is a new branch in my repo: git://github.com/ryanGT/sympy.git calle

Issue 1498 in sympy: Implement symbolic lcm, gcd

Comment #2 on issue 1498 by plaes800: Implement symbolic lcm, gcd http://code.google.com/p/sympy/issues/detail?id=1498 gcd - greatest common divisor: >>> gcd(x**2, x, x**3) x >>> gcd(x**2, x**4, x**3) x**2 >>> gcd(x, y, 3) 1 >>> gcd(4, 6, 12) # Regular numbers 4 lcd - least common multiple >>>

Issue 1497 in sympy: (x+y)/-z does not automatically expand to (-x - y)/z

Comment #3 on issue 1497 by ronan.l...@gmail.com: (x+y)/-z does not automatically expand to (-x - y)/z http://code.google.com/p/sympy/issues/detail?id=1497 This code is ugly! There shouldn't be more special cases but less. With this patch, we still get: In [6]: -(x+y)*(x/z) == (x+y)*(-x/z)

Issue 1498 in sympy: Implement symbolic lcm, gcd

Comment #3 on issue 1498 by ronan.l...@gmail.com: Implement symbolic lcm, gcd http://code.google.com/p/sympy/issues/detail?id=1498 I think what you are looking for is this: In [20]: gcd(y*(1+x)**2, (1-x**2)*y,x,y) Out[20]: y + x⋅y It's not very well documented, but it's there. -- You receive

Issue 1497 in sympy: (x+y)/-z does not automatically expand to (-x - y)/z

Comment #4 on issue 1497 by ronan.l...@gmail.com: (x+y)/-z does not automatically expand to (-x - y)/z http://code.google.com/p/sympy/issues/detail?id=1497 I wrote the previous comment too quickly and it came out as much more agressive than I intended. To clarify, I think that having Mul dis

Issue 1497 in sympy: (x+y)/-z does not automatically expand to (-x - y)/z

Comment #5 on issue 1497 by asmeurer: (x+y)/-z does not automatically expand to (-x - y)/z http://code.google.com/p/sympy/issues/detail?id=1497 I generally agree with what you are saying. Checking each possible combination that we want to distribute can get ugly, though note that things wil

Issue 1306 in sympy: Test the rst docs

Updates: Labels: -NeedsReview Comment #26 on issue 1306 by fab...@fseoane.net: Test the rst docs http://code.google.com/p/sympy/issues/detail?id=1306 (No comment was entered for this change.) -- You received this message because you are listed in the owner or CC fields of this issue, or