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Extra safe primes
Did you know that the number 5 is the first safe prime? A safe prime is a prime number that can be expressed as 2p+1, where p is...

7년 초과 전

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Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle. <<http://upload....

7년 초과 전

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Saving an array of images as an 'Image Stack'
According to the matlab documentation you can store multiple images to a single file as follows: imwrite(im1,'myMultipageFi...

9년 초과 전 | 4

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Pizza value using expression with parentheses
Pizza prices are typically listed by diameter, rather than the more relevant feature of area. Compute a pizza's value (cost per ...

9년 초과 전

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Why is there an out of memory error despite memory() stating there is enough?
I have the following code: data(ind) = data(ind) + shift; data(~ind) = data(~ind) - shift; The first line crashes wit...

10년 초과 전 | 답변 수: 2 | 0

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Why does adding a specific directory to Matlab path cause the save function to slowdown?
I'm having the following problem: in my application I'm storing a few hundred files. Lately, I notice that the save function has...

11년 초과 전 | 답변 수: 1 | 1

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Help in Installing MATLAB2014(32 bit) in Ubuntu14.04(64bit)
There does not seem to be a 32-bit Linux release of that Matlab version (see <http://www.mathworks.com/support/sysreq/release201...

11년 초과 전 | 0

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Check if number exists in vector
Return 1 if number _a_ exists in vector _b_ otherwise return 0. a = 3; b = [1,2,4]; Returns 0. a = 3; b = [1,...

12년 초과 전

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Create a row array using double colon operator
Create a row array from 9 to 1, using the double colon operator.

12년 초과 전

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Fahrenheit to Celsius using multiple statements
Given a Fahrenheit value F, convert to a Celsius value C. While the equation is C = 5/9 * (F - 32), as an exercise use two state...

12년 초과 전

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Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

12년 초과 전

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Simple equation: Annual salary
Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...

12년 초과 전

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Get the length of a given vector
Given a vector x, the output y should equal the length of x.

12년 초과 전

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Sum of diagonal of a square matrix
If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

12년 초과 전

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Make a Palindrome Number
Some numbers like 323 are palindromes. Other numbers like 124 are not. But look what happens when we add that number to a revers...

12년 초과 전

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How to determine size of checkbox
To answer my own question: One can use the following code which uses only Matlab routines: dpi = get(0, 'ScreenPixelsPer...

거의 13년 전 | 0

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How to determine size of checkbox
I am having some troubling positioning a checkbox in a UI. I have (programmatically) added a number of rows of checkboxes to a f...

대략 13년 전 | 답변 수: 3 | 0

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Hackathon: the beginnings
I am thinking of a number between 1 and 10000... can you guess what this number is? *Description* The test suite has rando...

거의 14년 전

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Lose control
Remove all characters that are below space in ASCII value.

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Back to basics 15 - classes
Covering some basic topics I haven't seen elsewhere on Cody. Return the class of the input variable.

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Convert a vector into a number
This is a sub problem related to this problem: <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition>...

거의 14년 전

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Back to basics 7 - Equal NaNs
Covering some basic topics I haven't seen elsewhere on Cody. Given 2 input variables, output true if they are equal, false ot...

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Back to basics 12 - Input Arguments
Covering some basic topics I haven't seen elsewhere on Cody. Return a value equal to the number of input arguments to the fun...

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Test for balanced parentheses
Given the input inStr, give the boolean output out indicating whether all the parentheses are balanced. Examples: * If ...

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The Goldbach Conjecture, Part 2
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

거의 14년 전

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Interpolator
You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end...

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Project Euler: Problem 6, Natural numbers, squares and sums.
The sum of the squares of the first ten natural numbers is, 1^2 + 2^2 + ... + 10^2 = 385 The square of the sum of the first ...

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Number of 1s in a binary string
Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

거의 14년 전

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Return the first and last character of a string
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

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2 b | ~ 2 b
Given a string input, output true if there are 2 b's in it, false if otherwise Examples: 'Macbeth' -> false 'Publius Cor...

거의 14년 전

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