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Generating random matrix with given probability mass function
Inspired by <http://www.mathworks.com/matlabcentral/cody/problems/2356-simulating-the-selection-of-a-state-with-given-probabilit...

10 years ago

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N-th digit of Pi
Give the N-th digits of Pi Input = 1 => Output = '1' Input = 1:10 => Output = '1415926535' Input = [11:15 25:35] => Out...

10 years ago

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Combined Ages 2 - Symmetric, n ≥ 3
Following on <http://www.mathworks.com/matlabcentral/cody/problems/42382-combined-ages-1-symmetric-n-3 Combined Ages 2>, you wil...

10 years ago

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Faint Receipt
Suppose you have a receipt with some numbers that have been smudged or didn't print. In particular, the total amount is missing ...

10 years ago

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Add two hex numbers
Add two hex numbers

10 years ago

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Divisible by n, prime vs. composite divisors
In general, there are two types of divisibility checks; the first involves composite divisors and the second prime divisors, inc...

10 years ago

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Bouncy numbers
Inspired by Project Euler n°112. * * Working from left-to-right if no digit is exceeded by the digit to its left it is call...

10 years ago

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sum of digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 ...

10 years ago

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sum of digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 ...

10 years ago

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Define the operators of function_handles
Suppose f and g are function_handles, try to define f+g,f-g,f*g and f/g. e.g. if f = @(x)x and g = @(x)x+1 ...

10 years ago

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replace empty matrices with '[]'
for example a=1;a(:,1)=[]; returns a = Empty matrix: 1-by-0 use this as the input,and the output should be '[]...

10 years ago

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Is it column vector?
Is it column vector? Check vector for column vector without using iscolumn function.

10 years ago

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Pancakes for everyone!
Accordingly to the <http://nl.mathworks.com/matlabcentral/cody/problems/42460-the-cake-is-a-lie problem 42460>. All the children...

10 years ago

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Repeat string n times - 3
function myOutput = rep_str_3(string1, string2, num1, num2, n) function desiredOutput = rep_str_3('string1', 'STRING2', 0...

10 years ago

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combine cells
A cell type variable is created. However it has other cells in itself. we want to integrate them all in a single cell. the conte...

10 years ago

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Create a fixed format text output
Given a short brief matrix, such as x = [1.2 2.4 3.6; 1.5 2.3 3.5; 1.35 2.35 3.65] and a label 13, create a fixed format text o...

10 years ago

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Code Wheel
Create a function that offsets each value in a given string by a given amount. For instance, codewheel('hello',1) s...

10 years ago

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Converter temp 0 to 200 degree C to 4 to 20mA
Converter temp 0 to 200 degree C to 4 to 20mA (It is used in transmitter)

10 years ago

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The cake is a lie...
You're hosting a birthday party with a large number of screaming children. Fortunately, you have a gigantic sheet cake in front...

10 years ago

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Go back n times
You will be given a column vector (such as x = [1; 2; 3; 4; 5; 6; 7; 8]). If (n=3) you will return following; [ 1 NaN NaN Na...

10 years ago

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Make a full wave rectifier
Produce a full wave rectifier waveform for the given sine wave source. For a sine wave input, the output of the full wave rec...

10 years ago

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Make a half wave rectifier
Produce a signal that outputs the given sine wave source when it is greater than zero and outputs zero when it is less than zero...

10 years ago

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Calculate trends in time series
Create a new variable that has trends in input series. If _t+1_ is bigger than or equal to _t_, than trend in _t_ will be 1, oth...

10 years ago

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Low level NaN
* I have a dataset. Columns represents different variables. * A variable may start with NaN or any double type number. * If i...

10 years ago

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Repeat string n times - 2
This is the two variable version of <http://www.mathworks.com/matlabcentral/cody/problems/42482-repeat-string-n-times Repeat str...

10 years ago

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Give prime Numbers upto n
You are given a input number x; print all the prime numbers less than equal to x.

10 years ago

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Produce a cosine wave
Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/cosine-eqn.png>>

10 years ago

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Produce a sine wave
Produce a sine wave with amplitude 3: <<http://blogs.mathworks.com/images/seth/cody/sine-eqn.png>>

10 years ago

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Add offset to a signal
Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/add-offset-eqn.png>> You should see a downward...

10 years ago

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Add a block to a model
Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/add-block-eqn.png>> In this case, the slope of...

10 years ago