Eigen4AutoIt - Matrix computing with Eigen
By
RTFC, in AutoIt Example Scripts
-
Similar Content
-
By RTFC
The Eigen4AutoIt environment (thread is here:
online Help is here) allows you to do matrix I/O (memory & files), matrix arithmetic, transformation, and decomposition, solve systems of linear equations, and perform advanced statistics, all at either single or double precision. Most functions can act on real or complex matrices (or the latter's real/imaginary parts separately). Much of the actual complexity of using Eigen in its native C++ environment has been hidden for AutoIt users, through extensive bounds and error checks, an intuitive function-naming convention, a large help file, and detailed tutorials and test examples.
This library allows you to perform fast matrix operations on large numerical data sets, using special matrix variables and simple AutoIt wrapper functions. These wrappers call C++ wrappers in the dlls (also written by RTFC, source included). The dlls in turn re-map AutoIt memory and call one or more Eigen functions. All operations are memory pointer-based and act directly on the matrices created in your AutoIt script, obviating the need for data transfers. Both 32-bit and 64-bit environments are supported; in x64, matrices can be any size that fits into virtual memory.
-
By AlecSadler
Hello friends! I have been working on an encryption algorithm in autoit as a proof of concept for some time now. Basically the algorithm uses a progressive recursion to encode data inside a matrix using a key that changes according to the date-time of the system, which is extracted from a larger key array. Recently after a drive failure, I lost the source and had to start from scratch, now I can't quite get it working the way it was before, and I can't see what I'm doing wrong, if anyone who understands matrix math or encryption could help I would much appreciate it. The problem is that the values returned by the decryption (extraction) process are way too big.
I have figured out the solution to my problem, it was a typo, please disregard this thread.
I will post my project into example scripts when it's ready.
-
By Edano
i searched the forum, but didn't find anything.
has anyone an idea or ever done it with autoit ? simple image transforming, like sharpness, brightness, blurring etc. ?
maybe, does gdiplus.dll feature that ?
here is a tutorial on how to do it the hard (mathematical) way. http://lodev.org/cgtutor/filtering.html before i try that, i wanted to know if there is already an existing project or an idea or anyone has experiences.
thx
-
By logmein
Hi there!
I have been learning linear algebra in my university for months. The subject was rather hard, I did't understand it much so I sent a email to my teacher to ask him. But I realized that typing a matrix by text was extremely hard. I don't want to make a LaTex function, save to a file, attach it to the mail, bla bla bla!!! It's complicated! So I spent 2 hours yesterday to make this tool. Just type the number of lines and columns and matrix values, it will generate a quite nice matrix in ASCII characters
Enjoy!
Notes: It will rearrage your numbers to straight columns.
1x1 will cause error.
ConsoleWrite (@CRLF & '------------------------------------MATRIX TEST-----------------------------------------' &@CRLF) Dim $c = 6;column Dim $l = 4;line Dim $n = '1,6,2,4,b,a,7,6,6,0,44,4,6,3,6,2,6,8,9,6,6,1,2,logmein' $split = StringSplit ($n,',') If $c * $l <> $split[0] Then ConsoleWrite ('! Matrix values number do not match the columns and lines !' & @CRLF) Exit EndIf Dim $char[$l][$c], $len[$l][$c], $maxlen[$c][3] For $i = 0 To $l-1 For $u = 0 To $c -1 $v = $i*($c) + $u +1 $char[$i][$u] = $split[$v] $len[$i][$u] = StringLen ($split[$v]) If $len[$i][$u] > $maxlen[$u][0] Then $maxlen[$u][0] = $len[$i][$u] $maxlen[$u][1] = $i $maxlen[$u][2] = $u EndIf Next Next Local $finallen For $u = 0 To $c - 1 $finallen += $maxlen[$u][0] Next ConsoleWrite (' _' & _Repeat(' ',$finallen + $c) & '_' & @CRLF) For $i = 0 To $l-1;write lines For $u = 0 To $c-1;write columns $v = $i*($c) + $u +1 $char[$i][$u] = $split[$v] Switch $u Case 0; the first column If StringLen ($char[$i][$u])<$maxlen[$u][0] Then ConsoleWrite ('| ' & $char[$i][$u] & _Repeat(' ', $maxlen[$u][0]-StringLen ($char[$i][$u])+1)) Else ConsoleWrite ('| ' & $char[$i][$u] & ' ') EndIf Case 1 To $c-2 ;middle columns If $i > 0 Then If StringLen ($char[$i][$u]) < $maxlen[$u][0] Then ConsoleWrite ($char[$i][$u] & _Repeat(' ', $maxlen[$u][0]-StringLen ($char[$i][$u])+1)) Else ConsoleWrite ($char[$i][$u] & ' ' ) EndIf Else If StringLen ($char[$i][$u]) < $maxlen[$u][0] Then ConsoleWrite ($char[$i][$u] & _Repeat(' ', $maxlen[$u][0]-StringLen ($char[$i][$u])+1)) Else ConsoleWrite ($char[$i][$u] & ' ' ) EndIf EndIf Case Else ; the last column If StringLen ($char[$i][$u])<$maxlen[$u][0] Then ConsoleWrite ($char[$i][$u] & _Repeat(' ', $maxlen[$u][0]-StringLen ($char[$i][$u])+1) & ' |' & @CRLF) Else ConsoleWrite ($char[$i][$u] & ' |' & @CRLF) EndIf EndSwitch Next Next ConsoleWrite ('|_' & _Repeat(' ',$finallen + $c ) & '_|' & @CRLF) Func _Repeat($chars, $times);repeat a character in a specified time Local $rChar For $a = 1 To $times $rChar &= $chars Next Return $rChar EndFunc ;==>_Repeat
-