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MATLAB Basic: rounding
Do rounding near to zero Example: -8.8, answer -8 +8.1 answer 8

ungefär 4 år ago

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Remove element(s) from cell array
You can easily remove an element (or a column in any dimension) from a normal matrix, but assigning that value (or range) empty....

ungefär 4 år ago

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String Array Basics, Part 1: Convert Cell Array to String Array; No Missing Values
<http://www.mathworks.com/help/matlab/characters-and-strings.html String array> and cell array are two types of containers for s...

ungefär 4 år ago

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Natural numbers in string form
Create a cell array of strings containing the first n natural numbers. _Slightly_ harder than it seems like it should be. Ex...

ungefär 4 år ago

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Fix the last element of a cell array
Note: this is lifted directly from <http://www.mathworks.com/matlabcentral/answers/82825-puzzler-for-a-monday Puzzler for a Mond...

ungefär 4 år ago

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Cell Counting: How Many Draws?
You are given a cell array containing information about a number of soccer games. Each cell contains one of the following: * ...

ungefär 4 år ago

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Convert a Cell Array into an Array
Given a square cell array: x = {'01', '56'; '234', '789'}; return a single character array: y = '0123456789'

ungefär 4 år ago

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Split a string into chunks of specified length
Given a string and a vector of integers, break the string into chunks whose lengths are given by the elements of the vector. Ex...

ungefär 4 år ago

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Convert a numerical matrix into a cell array of strings
Given a numerical matrix, output a *cell array of string*. For example: if input = 1:3 output is {'1','2','3'} whic...

ungefär 4 år ago

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Create a cell array out of a struct
Create a cell array out of a (single) struct with the fieldname in the first column and the value in the second column: in: ...

ungefär 4 år ago

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How many Fibonacci numbers?
Find the number of unique Fibonacci numbers (don't count repeats) in a vector of positive integers. Example: x = [1 2 3 4...

ungefär 4 år ago

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Project Euler: Problem 2, Sum of even Fibonacci
Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 te...

ungefär 4 år ago

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Number of Even Elements in Fibonacci Sequence
Find how many even Fibonacci numbers are available in the first d numbers. Consider the following first 14 numbers 1 1 2...

ungefär 4 år ago

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Fibonacci-Sum of Squares
Given the Fibonacci sequence defined by the following recursive relation, * F(n) = F(n-1) + F(n-2) * where F(1) = 1 and F(1)...

ungefär 4 år ago

Question

Check that point doesnt lay on line in Simulink block diagram
Hello! I want to connect some block programatically. The simplest way for that is to add_line by points but when i add line by ...

ungefär 4 år ago | 1 answer | 0

1

answer

Answered
Problems with the legend function.
Hello! The simplest way is to define 'DisplayName' parameter for curves. For example: plot(-7.000,f(-7.000),'sq','MarkerSize',...

ungefär 4 år ago | 0

| accepted

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Find a subset that divides the vector into equal halves
Given a vector x, return the indices to elements that will sum to exactly half of the sum of all elements. Example: Inpu...

mer än 4 år ago

Answered
A and B must be floating-point scalars.
Hello, You need to replace i = integral (fun, x, 0, t); to one of variants below: If you want to integrate in x range (from x(...

ungefär 5 år ago | 0

| accepted

Question

Can I mark block as 'algebraic loop breaker'?
Hello, I create block which implement time shift in signal for some steps but Simulink decides that there is algebraic loop wit...

ungefär 5 år ago | 0 answers | 0

0

answers

Answered
Insert number in polynomial
Hello, You need to replace f= @(x)p; by f = symfun(p,x);.

ungefär 5 år ago | 0

Question

Using complex structure in simulink constant block
Hello, I know that there is way to pass structure to simulink model as bus object but what should I do if i need to pass comple...

ungefär 5 år ago | 1 answer | 0

1

answer

Question

Force output for function with no output
Hello! I am working with function handles and get error because function does not return anything. Can I force any function to ...

mer än 5 år ago | 1 answer | 0

1

answer

Question

Run VBA code in MS Office through COM
Hello, I need to take some data from program through COM but that program does not working with Matlab correctly. However tha...

nästan 6 år ago | 0 answers | 0

0

answers

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How i can call matlab basic function if that name is accotiated with couple of functions?
The simplest way to do that is use that code: varargout = builtin('diff',varargin{:}); Also you can looking for somethin...

mer än 6 år ago | 0

| accepted

Question

How i can call matlab basic function if that name is accotiated with couple of functions?
Hello, I need to call function |diff| (differences between array elements) for array of symbolic variable but matlab is using...

mer än 6 år ago | 2 answers | 0

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answers

Answered
How to solve det(s^2*M+s*C(s)+K)=0 for s as fast as posible
You can try to use that code from <https://www.mathworks.com/matlabcentral/fileexchange/67052-matlab-scripts there>: A=Ga...

mer än 6 år ago | 0

Solved

Bottles of beer
Given an input number representing the number of bottles of beer on the wall, output how many are left if you take one down and ...

mer än 6 år ago

Answered
Help reducing memory usage during large matrix multiplication
I think that problem can be solved by the manual multiplication of matrices. %note: V2=(V2-I*C) is the same V2(172)=V2(172)...

mer än 6 år ago | 0

Answered
How I can fix this "Signal Dimension" error message ?
You may use |Simulink/Signal Attributes/Signal Specification block|. Specify number of dimensions like that is shown on the pict...

mer än 6 år ago | 1

Solved

Model a mass spring system
Model an ideal mass-spring system shown below where the spring is initially stretched. <<http://blogs.mathworks.com/images/se...

nästan 7 år ago