# Alessandro Maria Marco

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Question

Speed up nested loops with parfor

I'm trying to speed up this part of code. I have a constraint: the inputs of ReturnFn must all be scalars. If it was not for thi...

3 månader ago | 0 answers | 0

### 0

answersVectorize nested loops for performance

I managed to vectorize the code but the vectorized code is faster than the loops only if the number of points on the grid is sma...

5 månader ago | 0

| accepted

Question

Vectorize nested loops for performance

I have to solve a dynamic programming problem with a finite horizon and I am trying to vectorize as much as possible for speed. ...

5 månader ago | 1 answer | 0

### 1

answerQuestion

fsolve with bound constraints - transformation method

I would like to solve a system of nonlinear equations with bound constraints, i.e. lb<=x<=ub. Matlab suggests to convert the pro...

9 månader ago | 2 answers | 0

### 2

answersQuestion

Cubic interpolation coefficients and basis matrix

Suppose I have n data points (x(i),y(i)) with i=1,..,n. I want to compute a cubic interpolant that fits exactly these points (in...

10 månader ago | 1 answer | 0

### 1

answerSpeed up code by eliminating loop

The vectorized code after eliminating the loop over d is the following. Choose either 'loops' or 'vec' at the beginning of the s...

10 månader ago | 0

| accepted

Question

Speed up code by eliminating loop

Dear all, I have to do a maximization of a 3-D array V(e,b,d) over the first-dimension, obtaining something that I call e_opt w...

11 månader ago | 2 answers | 0

### 2

answersQuestion

Compute linear interpolant in pp form and find derivative

I would like to compute a linear interpolant in pp-form and then use the function fnder to compute its derivative. [The reason t...

11 månader ago | 1 answer | 0

### 1

answerQuestion

Bilinear interpolation faster than interp2?

I am doing bilinear intepolation and I am looking for a function that is faster than interp2 or griddedinterpolant. I have found...

ungefär ett år ago | 1 answer | 0

### 1

answerQuestion

Unpack structure, only some fields

Suppose I have the structure par with fields par.a=3.5; par.b=[4;1.2]; par.c='ale'; I want to create variables b and c such...

mer än ett år ago | 2 answers | 0

### 2

answersQuestion

Parallelize nested loops with parfor

I'm trying to speed up the simulation of some panel data. I have to simulate first over individuals (for ii from 1 to N) and the...

nästan 2 år ago | 2 answers | 0

### 2

answersQuestion

parfor nested loop ind2sub

I have three nested loops and I would like to parallelize all of them using parfor. I know that it is not possible to nest a par...

nästan 2 år ago | 1 answer | 0

### 1

answerQuestion

Speed up vectorized code automatic expansion logical indexing

I have to compute the maximum of a 2-dimensional array repeatedly in a nested loop and I am trying to speed up the code, also us...

ungefär 2 år ago | 1 answer | 0