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Generate vector according to sign of vector
Generate vector according to sign of vector Example: If A=[-2 0 5] then output must be[-1 0 1] meaning that for negative n...

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Count number of words in string
Count number of words in string Examples 'hi', answer is 1 'hi hi', answer is 2 'I enjoy cody', answer is 3

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solve an equation by iterration
Put Sigma in the other side of the equation by changing it sign, and then use *fsolve*. <https://it.mathworks.com/help/optim/ug...

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Consecutive Powers
Return 2 numbers and 2 powers such that their difference is 1 A 4 element row vector is expected: x where x(1)^x(2) - x(...

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Make a diamond
Given n, odd number > 1, return n by n matrix consist of "null" and "*" characters arranged like a diamond. No toolbox funct...

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Parse string and identify specific string sequence in algebraic equation
Given a string S that defines an algebraic expression such as: S= 'X= A1 + A2*(Y1 + A3*Y3)*exp( A4*Y12 + Y1) ;' return a...

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Create a dictionary
The goal is to write a function that returns a dictionary from a list of words or phrases and their definitions. Here is an exam...

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A quadrant matrix
Write a function called quadrants that takes as its input argument a scalar integer named n. The function returns Q, a 2n-by-2n ...

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Rotate Matrix @180 degree
Rotate Matrix @180 degree Example A=[8 1 6; 3 5 7; 4 9 2], then answer would be [2 9 4;...

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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...

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Create a matrix with difference of each row of input matrix
With a given input matrix A, create a output matrix B in such a way that each row in B is a difference of rows of input matrix A...

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Hardy-Ramanujan number
Find the first Hardy-Ramanujan number.

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Finite difference problem with matlab 2014
Your problem is equaivalent to this (without the variable t, which redundant here as it is used only for indexing purposes). Sin...

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give name to node in dendrogramm
Use the 'Labels' property of the dendogram plot. Keep in mind that dendrogram labels any leaves in the dendrogram plot containin...

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two dimensional for loop - "matrix dimensions must agree"
*Do not use* commas to separate decimals as in N = [1000, 10,000, 100,000]; In matlab commas are only to separate betwe...

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Is there a Row limit when transfering a matlab table to CSV file?
Depending on Office version, there are limitations in the maximum number of rows Excel can load. To really know how many rows th...

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Fitting a 3D sine function to topographic data?
A simple idea is to downsample your data (also called decimation). Since your data is very regular, you can remove a lot of samp...

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How to find the R peaks in QRS complexes
Here you cannot use built in matlab function findpeaks, because it works only in 1D. To work in 2D use this: <https://it.math...

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Min and max in integral
To get max of symbolic variables x,y try this: max(double([x,y]))

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How to display specific points and values?
To display also top axis, use box on; I didn't get what is the other problem. Can you explain better?

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How can I detect the difference b/w indices of vector and stop it as well?
To get the differences between all consecutive values of x, better use the built-in matlab function diff(), and then thresholdin...

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Bruh
Return 'bruh'.

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Product of Array
Given an array of numbers. Get the product of the array.

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Matrix multiplication across rows
Given matrix m, return matrix n such that, rows of n are result of multiplication of the rows of the input matrix Example ...

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Sort the vector with the given index
Given x = [1 2 4 8 17] and t = [1 3 2 5 4] then y = [1 4 2 17 8].

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Determine the Anti-diagonal of a Magic Square
Determine the anti-diagonal (crossing from top right to lower left) of a magic square of size n. Examples If n = 3 y =...

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Area of a circle
Given the radius x, y would be the area of a circle. Pi = 3.1416

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Slicing the cube
A bored matlab enthusiast has a cube with volume n^3. He decides to paint the entire surface of the cube red. Then, with slices...

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Sum of series III
What is the sum of the following sequence: Σ(2k-1)^3 for k=1...n for different n?

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Simple problem creating a function from an abstract specification.
MYSTERYFUNCTION3 This takes a vector of numbers v and computes a vector w such the w[i] is the average of v[i] and the previous...

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