Mohammad Shojaei Arani
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Awarded to Mohammad Shojaei Arani on 04 Jan 2022
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Question
Multivariate Horner scheme implementation in MATLAB
Hello friends! I have very long symbolic expressions (mainly polynomials or rational types) and I need to evaluate them man...
2 meses ago | 0 answers | 0
0
answersQuestion
PP form for the reverse function (not inverse function)
Hello friends! Consider a pp form for a set of (x,y) data points. Imagine now that we wish to find the pp form for the (x,1/y) ...
3 meses ago | 0 answers | 0
0
answersQuestion
Find constants in a symbolic vector
Hello friends! I have a simple question but found it difficult to come up with a perfect answer. I explain by a simple example....
3 meses ago | 1 answer | 0
1
answerQuestion
Suitable input for a function handle
Hellow friends, I need to do something which I explain through a simple example. Consider the following F=@(x,y,z)[x.*z.^2.*y;...
3 meses ago | 1 answer | 0
1
answerQuestion
I cannot remove 0 elements of a symbolic array
Hello friends! Consider the following commands syms x sigma(x) par=sym('par%d', [1 2],'positive'); sigma(x)=par(1)+par(2)*...
4 meses ago | 1 answer | 0
1
answerQuestion
Replace powers with a sequence
Hello friends! Consider a binomial symbolic expression like (x-1)^3 and a symbolic vector e of size 3 (e=sym('e',[1 3]) ). Of ...
4 meses ago | 1 answer | 0
1
answerQuestion
Subs does not do the job
Hello friends! I do not understand why in my code (see bellow) the command 'subs' does not through ant error and at the same ti...
4 meses ago | 1 answer | 0
1
answerQuestion
Perhaps a bug in matlab?
Hello friends! I think I have encountered a bad issue about matlab, perhaps it is a bug. Consider the following commands >> sy...
4 meses ago | 1 answer | 0
1
answerQuestion
PP form for griddedInterpolant
Hello friends! This morning I was going to use interp1 but noticed that matlab is going to remove it soon. Instead, they recom...
4 meses ago | 1 answer | 0
1
answerQuestion
Vectorizing a function handle with some constant inputs
Hello friends! I have an annoying problem and need your kind help! Suppose that I have a symbolic vector like f = [x+y;0;x.*y;...
4 meses ago | 0 answers | 0
0
answersQuestion
How to turn a function handle with 3 inputs (1 variable and 2 parameters) and then assign the inputs parameters and get a function handle with one input? ?
Hello friends! Consider the following y=1;z=1; f=@(x,y,z)x+y+z; Now, I would like to create another function handle which is...
4 meses ago | 3 answers | 0
3
answersQuestion
A very strange problem
Hi friends! After spending an hour on a seemingly simple problem I was not able to figour out what is wrong and this is why ...
4 meses ago | 3 answers | 0
3
answersQuestion
A simple algebraic which I failed to do
Hello friends! Unfortunately, I have to tell you that I am unable to do a simple math I learned at intermediate school in mat...
5 meses ago | 1 answer | 0
1
answerQuestion
How to tell vpa command to consider digits after decimal point' only?
Hello friends, I have a simple question, I think! I have a symbolic expression S with numeric coefficients. I need to round the...
5 meses ago | 1 answer | 0
1
answerQuestion
A simple algebraic calculation does not work properly!
Hi friends! I have been strugling to tell matab to do a simple calculation for me but I failed, unfortunately. I explain my pro...
5 meses ago | 2 answers | 0
2
answersQuestion
Manipulating a text file without using symbolic engine
Hello friends! I have extremely long algebraic expressions saved as text files. I need to asign 0 to some variables in the text...
5 meses ago | 1 answer | 0
1
answerQuestion
Collect does not do the job
Dear friends, I have a simple question but after spending an hour I could not figur out how to fix it. So, apologies if this ...
6 meses ago | 1 answer | 0
1
answerQuestion
How to do symbolic interpolation in matlab?
Hellow friends! I need to do symbolic interpolation in matlab but after spending a day I had no success. You might say why I...
6 meses ago | 1 answer | 0
1
answerQuestion
Does anybody know how to calculate self-calling differential operators fast?
Hello friends, I have a code with a for-loop where inside the for-loop there is a differential operator which uses a function, ...
6 meses ago | 0 answers | 0
0
answersQuestion
How to tell matlab to, instead of throwing an error message, give me a Boolean (e.g., 0 means I get error) when I try to use Horner command
Hello friends, In my code I need to know beforehand whether matlab can calculate Horner representation for my polynomial. Somet...
7 meses ago | 2 answers | 0
2
answersQuestion
How to tell an multi-output anonymous function to vectorize its output components which are constant
Hello friends, I have an apparently simple but very annoying problem. Consider the function handle f=@(x,y) [x+y;2;x*y;x^2-1...
7 meses ago | 1 answer | 0
