529 reputation
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bio website bandes-storch.net
location Portland, OR
age 21
visits member for 2 years, 3 months
seen 9 hours ago

Computer & math geek, programmer, etc.
Twitter: @jtbandes.

upthere.com


Jul
19
revised How to define two polyhedron intersect or not?
code formatting
Jul
19
suggested suggested edit on How to define two polyhedron intersect or not?
Jul
17
comment How to estimate the matrix condition number in the 2-Norm?
That sounds reasonable; the threshold would of course be up to you, based on the computational speed you need.
Jul
17
revised My code is not converging using NIntegrate. Why? Help please
code formatting
Jul
17
suggested suggested edit on My code is not converging using NIntegrate. Why? Help please
Jul
17
revised How to estimate the matrix condition number in the 2-Norm?
added 416 characters in body
Jul
17
revised How to estimate the matrix condition number in the 2-Norm?
added 16 characters in body
Jul
17
revised How to estimate the matrix condition number in the 2-Norm?
added 16 characters in body
Jul
17
comment What kind of object results from RegionIntersection function?
I still think it's a bug; if you type out a simple Polygon that has points in the wrong order, you still can compute the area.
Jul
17
comment Implementing efficient multiple undo
Awesome! First complaint: I should be able to hold down ⌘Z or ⇧⌘Z and have it repeatedly undo/redo :)
Jul
17
comment What kind of object results from RegionIntersection function?
DiscretizeRegion seems to behave consistently on empty regions, but Area not working here is probably a bug. With RegionIntersection[Disk[{0, 0}, 1], Disk[{5, 5}, 1]] // Area you get 0.
Jul
17
comment How to get the new font in Mathematica 10?
This is neat, but not the same font used in Wolfram Cloud (Source Sans Pro).
Jul
17
comment How to get the new font in Mathematica 10?
Mathematica has never been a programming environment where the programmer takes great care to align things between different lines of code — this is by nature of the variable spacing around operators, size of operators, etc.… So, there is no reason why a fixed-width font should be worthwhile in Mathematica. The environment can and already does typeset things The Way They Should Be™… modernize, I say!
Jul
17
comment Mathematica 10 Notebook Fonts Look Bad
Perhaps the hinting changed, but regardless, it is being antialiased (you can see if you zoom in on OP's image)... I'm just happy that v10 finally supports retina displays :)
Jul
17
awarded  Teacher
Jul
17
revised How to estimate the matrix condition number in the 2-Norm?
added 128 characters in body
Jul
17
answered How to estimate the matrix condition number in the 2-Norm?
Jul
17
comment How to estimate the matrix condition number in the 2-Norm?
By the way, SingularValueList returns a sorted list, so you can use First@#/Last@#&.
Jul
17
comment How to estimate the matrix condition number in the 2-Norm?
Interestingly, though it appears in blue, LinearAlgebra`MatrixConditionNumber works (with the same problem as OP)
Jul
17
comment How to estimate the matrix condition number in the 2-Norm?
The former doesn't work for me in Mathematica 10. Did you need to import anything for it to work?