benver
22nd April 2020, 22:27
Hi the board
I've now a problem that i cant solve for many days on derivative vector
I've installed Eigen librairy and then i put some CSV data to a dynamic matrix, this part works
I can also find maximum of column, and parse the matrix with eigen::arithmeticsequence ( it was no more installed on 3.3.7...it was little hard to manage) but now i can do it
The problem is that i have to make a derivative of vector on another vector i will give sample example
matrix A 3x3 : 1 2 3
4 5 4
5 6 7
i have to make derivative 1st colum on third : like (5-1)/(7-3)
The problem i need to make it as sequence with (n-(n-2))/ (n-(n-2)) in automatic sequence...
I cant find any function in eigen to make easy derivative.... that's easy to sum ou minus column but cell by cell i cant solve any idea ?!
I've now a problem that i cant solve for many days on derivative vector
I've installed Eigen librairy and then i put some CSV data to a dynamic matrix, this part works
I can also find maximum of column, and parse the matrix with eigen::arithmeticsequence ( it was no more installed on 3.3.7...it was little hard to manage) but now i can do it
The problem is that i have to make a derivative of vector on another vector i will give sample example
matrix A 3x3 : 1 2 3
4 5 4
5 6 7
i have to make derivative 1st colum on third : like (5-1)/(7-3)
The problem i need to make it as sequence with (n-(n-2))/ (n-(n-2)) in automatic sequence...
I cant find any function in eigen to make easy derivative.... that's easy to sum ou minus column but cell by cell i cant solve any idea ?!