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... automáticamente un árbol a partir de los datos y cambia a TreeBrowse. Esta característica funciona para la mayoría de las fuentes de datos como matrices, ficheros dbf, conjuntos de filas, pero no funciona con conjuntos de registros ADO. Ahora también funciona con conjuntos de registros ADO. ...

Dear Silvio,

My interest in porting those 9 lines from Python to Harbour is in building a small and simple neural network to be used from Harbour and mainly for learning purposes

Dear Silvio, http://forums.fivetechsupport.com/viewtopic.php?f=44&t=39467 Dear antonio I know that Python it is a multi-paradigm language, which supports both procedural programming (which makes use of functions) and object-oriented programming (including features such as single and multiple in...

Dear Silvio,

viewtopic.php?f=44&t=39467

I am very intrigued, I did not understand what you are trying to do, I want to participate too if it comes to things to eat (cakes, sweets, ..) even if I have to go on a diet I know !!!

Shortest version based on Mr. Rao version: function Main()   ? MatrixMult( { { 1, 2 }, { 3, 4 } },;                 { { 11, 12 }, { 13, 14 } } )return nilfunction MatrixMult( aMatrix1, aMatrix2 )   local aRowMatrix1,...

Shortest version ? :-) function Main()   ? MatrixMult( { { 1, 2 }, { 3, 4 } },;                 { { 11, 12 }, { 13, 14 } } )return nilfunction MatrixMult( aMatrix1, aMatrix2 )   local aRowMatrix1, nColMatrix2, nRowMa...

Without ArrTranspose function Main()   // [ 2, 2 ] x [ 2, 2 ] = [ 2, 2 ]   local aMatriz1 := { { 1, 2 }, { 3, 4 } }   local aMatriz2 := { { 11, 12 }, { 13, 14 } }   // [ 1, 3 ] x [ 3, 1 ] = [ 2, 1 ]   //local aMatriz1 := { { 1, -2, ...

With ArrTranspose function Main()   // [ 2, 2 ] x [ 2, 2 ] = [ 2, 2 ]   local aMatriz1 := { { 1, 2 }, { 3, 4 } }   local aMatriz2 := { { 11, 12 }, { 13, 14 } }   // [ 1, 3 ] x [ 3, 1 ] = [ 2, 1 ]   //local aMatriz1 := { { 1, -2, 3 }...

All the new matrix functions are still under testing and may still need some fixes.

Dear Antonino, Fixed in my original post many thanks! Mr. Rao has managed to implement an enhanced version that does not need the ArrTranspose() call. It will be included in the next FWH build: function MatrixMult( matrix1, matrix2 )   local MatrixA, MatrixB, i, j, nRow, nCol, nRow...

The fix is pretty simple, you swapped row and col creating the result, here the correct creation: function MatrixMult( aMatrix1, aMatrix2 )   local nRowsMatrix1 := Len( aMatrix1 )   local nColsMatrix2 := Len( aMatrix2[ 1 ] )   local aRowMatrix1, aRowMatrix2, nValRowMa...

Nice, now some home work: :wink: https://i.imgur.com/a1TDeej.png I tryed: function Main()   LOCAL a := { { 1, 2, 3 }, { 4, 5, 6 } }   LOCAL b := { { 11, 12 }, { 13, 14 }, { 15, 16 } }   ? hb_ValToExp(Ma...

function Main()   ? MatrixMult( { { 1, 2 }, { 3, 4 } },;                 { { 11, 12 }, { 13, 14 } } )          return nilfunction MatrixMult( aMatrix1, aMatrix2 )   local nRowsMatrix1 := Len( aMatrix1 ...