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2012-01-27 20:54:26 +0200 | commented answer | integrating with unspecified constants Why doesn't "a = Constant('a')" work? |

2012-01-21 17:36:24 +0200 | commented answer | integrating with unspecified constants It works. The answer is simpler. Now all I have to do is check it. Thanks. |

2012-01-21 15:49:12 +0200 | asked a question | integrating with unspecified constants in the online sage I typed: var('x,a,b') integrate(1/sqrt(b+a/x), x) And it answered: Traceback (click to the left of this block for traceback) ... Is b positive or negative? Of course b is positive but there is no way to answer it's question or to predefine b as positive, so far as I know. so I used b^2 and got a question "Is b > 0?". Well yes b>0. So is a. a and b are part of a physics problem. They change with the initial conditions. This is my first day with Sage. I have no idea what trace back is good for. I don't know how to use this thing so send a copy of the answer to me at august04@frontier.com. |

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