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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...

meer dan 11 jaar ago

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Back to basics 14 - Keywords

Covering some basic topics I haven't seen elsewhere on Cody. Return a cell array of all MATLAB keywords

meer dan 11 jaar ago

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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...

meer dan 11 jaar ago

Question

Huge different between MatLab and operating systems?

http://www.mathworks.com/matlabcentral/answers/42564-matlab-have-memory-leaks In the thread above, it was suggested that sinc...

meer dan 11 jaar ago | 2 answers | 0

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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...

meer dan 11 jaar ago

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Check if sorted

Check if sorted. Example: Input x = [1 2 0] Output y is 0

meer dan 11 jaar ago

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Finding Perfect Squares

Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

meer dan 11 jaar ago

Question

Change what folder matlab starts up with

Ok this is probably a stupid question but nothing I found on the internet works for me. When you start up MatLab there's the cur...

meer dan 11 jaar ago | 2 answers | 0

Question

Force matlab to quit while stuck in an infinite loop?

I found some newsgroup postings from about 4 years ago and back then there was no way to terminate a script from running in a in...

meer dan 11 jaar ago | 3 answers | 2

Question

Chars with white space

Using xmlread() I found that MatLab adds a lot of white space into the project for whatever reason. But I get values when I read...

meer dan 11 jaar ago | 2 answers | 0

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Too mean-spirited

Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...

meer dan 11 jaar ago

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Roll the Dice!

*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

meer dan 11 jaar ago

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Swap the input arguments

Write a two-input, two-output function that swaps its two input arguments. For example: [q,r] = swap(5,10) returns q = ...

meer dan 11 jaar ago

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Is my wife right? Now with even more wrong husband

Again, as in "Is my wife right?" ( <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right> ), answer 'yes' r...

meer dan 11 jaar ago

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How to find the position of an element in a vector without using the find function

Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

meer dan 11 jaar ago

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Make one big string out of two smaller strings

If you have two small strings, like 'a' and 'b', return them put together like 'ab'. 'a' and 'b' => 'ab' For extra ...

meer dan 11 jaar ago

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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 ...

meer dan 11 jaar ago

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Distance walked 1D

Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

meer dan 11 jaar ago

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The Hitchhiker's Guide to MATLAB

Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

meer dan 11 jaar ago

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Triangle Numbers

Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

meer dan 11 jaar ago

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Remove any row in which a NaN appears

Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

meer dan 11 jaar ago

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Swap the first and last columns

Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

meer dan 11 jaar 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. Example...

meer dan 11 jaar ago

Question

Get line properties from it's handle

I’m trying to get a lines property from its handle. I do this to get the handle to the line: lines = get_param(outPorts{i},...

meer dan 11 jaar ago | 1 answer | 0

Question

Use add_line on a line?

I was wondering if you could get a handle from a line and draw a line from that to something else. Kaustubha helped me with the ...

meer dan 11 jaar ago | 2 answers | 0

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Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

meer dan 11 jaar ago

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Column Removal

Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

meer dan 11 jaar ago

Question

Any way to figure out what your blocks are connected to in a model?

inPorts = find_system(modelName,'SearchDepth',2,'BlockType','Inport'); outPorts = find_system(modelName,'SearchDepth',2,'Bl...

meer dan 11 jaar ago | 1 answer | 1

Question

replace_block and load_system

I have 2 questions, first being: 1. Can replace_block replace blocks with custom made blocks? I'm having some trouble with th...

meer dan 11 jaar ago | 1 answer | 0

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Create times-tables

At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

meer dan 11 jaar ago