# MarshallSc

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**Content Feed**

Question

Specify Square Marker in a Plot

For a plot like below: X = (1:25); Y = [2 1 2 2 2 3 1 4 3 2 1 2 3 7 11 8 5 2 3 4 5 8 5 5 7]; fig1 = figure(); set(fig1,'colo...

2 months ago | 1 answer | 0

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answerQuestion

Remove Terms in Complex Valued Data That Has Only Real or Imaginary Part

I have a complex numeric array (file attached) that some of its terms have only real or imaginary part, and the rest have both t...

2 months ago | 1 answer | 0

### 1

answerQuestion

Build a Relation Between Matrix Elements

I have a complex valued matrix for example: a = complex(1.1,-1.3); b = complex(1.3,1.2);c = complex(1.5,-1.4); d = complex(1.8,...

2 months ago | 1 answer | 0

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answerQuestion

For Loop in 3D Array

For 2D arrays, the operation that I want to execute is: a = rand(3,3); for i = 1:numel(a) for j = 1:numel(a) out...

2 months ago | 1 answer | 0

### 1

answerQuestion

Solving a set of simultaneous equations

I have the following set of simultaneous equations that I want to solve. I'm just confused as to what solver is the best choice!...

4 months ago | 1 answer | 0

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answerQuestion

All the possible path between two points without repetition

I'm looking to get the value of all pairwise data between two points by an iteration. The iteration contains direct and indirect...

5 months ago | 1 answer | 0

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answerQuestion

Performing Iteration for a Matrix

I want to perform an iterative operation on each element of a matrix according to this equation which is for a 3 x 3 matrix: ...

5 months ago | 1 answer | 0

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answerQuestion

Plotting a Graph From a Cell Array

I have a cell array, let's call it A, which is a 4 x 4 cell each containing a 10 x 10 numbers from 1 to 5 (the cell array attach...

6 months ago | 1 answer | 0

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answerQuestion

Find the Minimum Combination of Sum

I have a 100 x 1 vector with numeric values, what I want to find is the minimum combination of the reference point with the uppe...

7 months ago | 2 answers | 0

### 2

answersQuestion

Cell Array Reshape Operation

I have this 10x10 cell array: I want to reshape it into a 4x4 cell each containing a 10x10 matrix keeping the order of each v...

7 months ago | 1 answer | 0

### 1

answerQuestion

Error Using cellfun for a Matrix

I have an 81 x 81 matrix that divided it into smaller matrices: a = rand(81,81); n = 3*ones(1,27); a_d = mat2cell(a,n,n) Now...

7 months ago | 2 answers | 0

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answersQuestion

Performing an Operation on a Matrix Using Complex Numbers

I have a matrix with the operation perfomed as: a = rand(10,10); a_x = @(x) sum((x-a)./(x+a),'all'); aa = arrayfun(a_x,a); I...

7 months ago | 2 answers | 0

### 2

answersQuestion

Write Similar Expressions in Arrayfun

Is there a concise way to write these 4 expressions so that I don't have to write all of them seperately mayble in a for loop? ...

7 months ago | 1 answer | 0

### 1

answerQuestion

Roots of Polynomial in for Loop

I have these two vectors that are the 2nd and zero order coefficients: R = [0.0068 0.0036 0.000299 0.0151]; H = [0.0086 0.004...

7 months ago | 1 answer | 0

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answerQuestion

Quadratic Optimization for 4D in for Loop

I need to find the roots (complex in nature) of an objective function in 4D by using quadratic optimization for the function bel...

7 months ago | 1 answer | 0

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answerQuestion

Differential Operator in Matlab in 1 Dimension

In common, the differential operation is defined as "dy/dx" which means differentiate y with respect to x and in matlab it's def...

8 months ago | 2 answers | 0

### 2

answersQuestion

Solving a Second Order Piecewise Quadratic Equation

How can I solve a second order quadraic nonlinear equation for each components of two matrices. For example, having: a=rand(10,...

8 months ago | 1 answer | 0

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answerQuestion

Multi dimensional vector operation

Can someone please help me with figuring out the code for the operation below: I have two sets of matrices, for example: r_x=r...

9 months ago | 1 answer | 0

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answerQuestion

If statement in a for loop

I have a 4*4 array, that each contains a 10*10 matrix. I want to assign a value to the components that are bigger than 1. I wrot...

12 months ago | 3 answers | 0

### 3

answersQuestion

Vector from character array

If I have a character array for example: A={'high','low','low'} I want to introduce a vector for example B in which if the it ...

1 year ago | 1 answer | 0

### 1

answerQuestion

Creating charts in Matlab

Does Matlab have this capability to draw a chart like below for example: What I want to draw is I have different matrices (x ...

1 year ago | 1 answer | 0

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answerQuestion

Element wise cell division

This might sound very basic and silly, but I have two cells with complex doubles that I need to divide element wise. The problem...

1 year ago | 2 answers | 0

### 2

answersQuestion

Cell components perpendicular division

If I have a 4*4 cell array that each contain a 10*10 matrix as below (for example, Aii=10*10 matrix): A={Aii Aij Aik Ail; ...

1 year ago | 1 answer | 0

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answerQuestion

Calculating divisions in matrices

If I have 8 different 10*10 matrices, for example as: Ai=rand(10,10); Aj=rand(10,10); Ak=rand(10,10); Al=rand(10,10); Bi=...

1 year ago | 1 answer | 0

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answerQuestion

Perform operation on character arrays

How can I perform some operations on character cells? For example, after an if statement for a numeric cell array, I get another...

1 year ago | 1 answer | 0

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answerQuestion

If statement for cells

Hi, I have 3 different cell arrays like below - same size (let's call them A, B and C): That I need to evaluate in an if stat...

1 year ago | 1 answer | 0

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answerQuestion

Multiply a cell array with a matrix in an equation

Hello, I have a cell array like below (let's call it C). C: And a 4*4 matrix for example: A=rand(4,4); I want to multiply ...

1 year ago | 1 answer | 0

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answerQuestion

Cell array and matrix operation

Hello, I have a 4*4 cell array that has a 10*10 matrix within each cell like below (let's call it C): C= And two 10*10 separ...

1 year ago | 1 answer | 0

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answerQuestion

Covert a cell with the same indices into individual matrices

Hello, does anyone how I can convert a 10*10 cell array that each contains a 4*4 matrix into individual matrices. For example co...

1 year ago | 1 answer | 0

### 1

answerQuestion

Inverse of a cell array

Hello, I'm trying to get the inverse values of a 10*10 cell array, each containing a 4*4 matrix. The code is (credit to Stephen ...

1 year ago | 1 answer | 0