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Generate a sector mask within a big matrix

Solution could look like this: % Generate example coordinates x=linspace(-1,1,100); y=fliplr(linspace(-1,1,100)); [X,Y]=me...

Generate a sector mask within a big matrix

Solution could look like this: % Generate example coordinates x=linspace(-1,1,100); y=fliplr(linspace(-1,1,100)); [X,Y]=me...

1 day ago | 0

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How many trades represent all the profit?

Given a list of results from trades made: [1 3 -4 2 -1 2 3] We can add them up to see this series of trades made a profit ...

2 months ago

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Pizza!

Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

3 months ago

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Find the peak 3n+1 sequence value

A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

3 months ago

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Return the 3n+1 sequence for n

A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

3 months ago

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Alphabetize by last name

Given a list of names in a cell array, sort the list by the last name. So if list = {'Barney Google','Snuffy Smith','Dagwood ...

3 months ago

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How to change this for loop into parfor loop?

There are two issues in your code that prevent the parfor loop from working. # The matrix data is indexed in a way that matla...

How to change this for loop into parfor loop?

There are two issues in your code that prevent the parfor loop from working. # The matrix data is indexed in a way that matla...

2 years ago | 1

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How to extract numeric data from the text comments using importdata?

There are many ways to accomplish that. You can use string manipulation methods to deal with the possible formats you would ex...

How to extract numeric data from the text comments using importdata?

There are many ways to accomplish that. You can use string manipulation methods to deal with the possible formats you would ex...

2 years ago | 0

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why after I use the imwrite function, the pixels in the image are changed diferrent? before I convert from double matrix to uint8 matrix ?

This is likely a result from the compression/decompression process involved when saving to a jpg file. Choose a better suited fi...

why after I use the imwrite function, the pixels in the image are changed diferrent? before I convert from double matrix to uint8 matrix ?

This is likely a result from the compression/decompression process involved when saving to a jpg file. Choose a better suited fi...

2 years ago | 0

Answered

Displaying an axis scale in mm rather than pixels

It's a bit tricky without any example data, but this should do the trick. conversion=0.1; % in mm/pixel addMM=@(x) s...

Displaying an axis scale in mm rather than pixels

It's a bit tricky without any example data, but this should do the trick. conversion=0.1; % in mm/pixel addMM=@(x) s...

2 years ago | 2

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Dimensions of a rectangle

The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...

2 years ago

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Is this triangle right-angled?

Given three positive numbers a, b, c, where c is the largest number, return *true* if the triangle with sides a, b and c is righ...

2 years ago

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How to subtract?

*± ± ± ± ± ± ± ± ± ± ±* * Imagine you need to subtract one...

2 years ago

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Find the sum of all the numbers of the input vector

Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

2 years ago

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Make a checkerboard matrix

Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

2 years ago

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"Cody" * 5 == "CodyCodyCodyCodyCody"

*Alice*: What? *"Cody" * 5 == "CodyCodyCodyCodyCody"*? You've gotta be kidding me! *Bob*: No, I am serious! Python supports...

2 years ago

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The 5th Root

Write a function to find the 5th root of a number. It sounds easy, but the typical functions are not allowed (see the test su...

2 years ago