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bio website mathematics-diary.blogspot.co…
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visits member for 3 years, 2 months
seen Mar 21 at 12:09

Software engineer Java / Android

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Screenshot Graphica 0.7.0A DEV X6 30/8-'12

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Mar
22
awarded  Famous Question
Mar
17
awarded  Nice Question
Jan
18
awarded  Yearling
Oct
28
awarded  Popular Question
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24
awarded  Autobiographer
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awarded  Notable Question
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15
awarded  Good Question
Jan
22
accepted Has Mathematica a function to compute the Smith Normal Form?
Jan
22
comment Has Mathematica a function to compute the Smith Normal Form?
Coded in 1994 and it still works in Mathematica 9, that's how it should be.
Jan
22
asked Has Mathematica a function to compute the Smith Normal Form?
Jan
18
awarded  Yearling
Jan
13
awarded  Favorite Question
Nov
23
comment How to insert / merge a list into another list?
It is much faster than my previous ( but more beautiful ) choice: insertSeqA[x_, y_, n_] := FlattenAt[Insert[x, y, n], n]; insertSeqB[x_, y_, n_] := Join[x[[1 ;; n - 1]], y, x[[n ;; -1]]] Timing[insertSeqA[Flatten[Array[{#1, #2} &, {1000, 1000}], 1], Flatten[Array[{#1, #2} &, {100, 100}], 1], 1000];] Timing[insertSeqB[Flatten[Array[{#1, #2} &, {1000, 1000}], 1], Flatten[Array[{#1, #2} &, {100, 100}], 1], 1000];]
Nov
23
comment How to insert / merge a list into another list?
I did not know about the function FlattenAt, I like the third option. ( Imagine I hadn't asked the question. )
Nov
23
comment How to insert / merge a list into another list?
I made an error, but have edited it, sorry.
Nov
23
asked How to insert / merge a list into another list?
Nov
23
accepted How to find the longest matching sublists in a list
Nov
16
comment How to find the longest matching sublists in a list
So far, so good, thanks