2018-11-15 18:15:10 +0200 | commented answer | solve() is not giving the right solutions I figured that it would cancel each other, but i wasnt aware of the simplify-method. Thank you, im going to try this! :) e: im still wondering if it should be this way. If i test this with "in RR" i get false which is not true as u said yourself... thats kinda odd |

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2018-11-15 15:17:54 +0200 | asked a question | solve() is not giving the right solutions Hey there, i need your help on this one. The following sage code is giving me a headache: - f(x) = x^3 + x^2 - 0.1
- solve(f==0, x)
- -->
- [x == -1/2
*(1/180*I*sqrt(13)*sqrt(3) + 7/540)^(1/3)*(I*sqrt(3) + 1) - 1/18*(-I*sqrt(3) + 1)/(1/180*I*sqrt(13)*sqrt(3) + 7/540)^(1/3) - 1/3, x == -1/2*(1/180*I*sqrt(13)*sqrt(3) + 7/540)^(1/3)*(-I*sqrt(3) + 1) - 1/18*(I*sqrt(3) + 1)/(1/180*I*sqrt(13)*sqrt(3) + 7/540)^(1/3) - 1/3, x == (1/180*I*sqrt(13)*sqrt(3) + 7/540)^(1/3) + 1/9/(1/180*I*sqrt(13)*sqrt(3) + 7/540)^(1/3) - 1/3]
So i'm getting these 3 solutions, but they are not in R (real numbers), which they should be. Im figuring there is some problem with really long terms or something? Is there an easy solution for this? Is the solve()-method here working as intended? Regards, Ben |

2018-07-31 17:24:11 +0200 | commented answer | Is there a way to use sage-boolean-values in Latex Thanks for your answer. I already got to that workaround myself in the meantime. So the bottom line for this kind of problem is: Do all the logic in python right? :) |

2018-07-31 17:23:50 +0200 | answered a question | Is there a way to use sage-boolean-values in Latex Thanks for your answer. I already got to that workaround myself in the meantime. So the bottom line for this kind of problem is: Do all the logic in python right? :) |

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2018-07-25 00:31:41 +0200 | asked a question | Is there a way to use sage-boolean-values in Latex Hey there, im completely new to sage and so far i got along quite well, but i can't figure this one out. I want to create randomized mathproblems and i want latex to decide what to print depending on calculations in sage. So here is a functional minimal example: What do i need to do if i want to switch a and b depending on if the result is negative or not? |

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