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# Michael Ryan

291 total contributions since 2012

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Can you reshape the matrix?
Given a matrix A, is it possible to reshape it into another matrix with the given number of rows?

1 year ago

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Create a figure and plot data
Given two data vectors (x,y), open a new figure and plot the data. Return the figure handle.

1 year ago

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Produce the following matrix
Produce the following matrix x = [2 3 4] y_correct = [1 1/2 1/3; 2 1 1/4; 3 4 1];

1 year ago

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Find Missing Number
A little problem (inspired by CodeChef) for the coffee break. A friend give you an array of size n-1 integers and these int...

1 year ago

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Model a falling body
An object is falling freely from a height of 22 meters under the force of gravity. <<http://blogs.mathworks.com/images/seth/c...

1 year ago

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Counting pulses in a signal
Count the number of pulses that are the result of summing each pulse generator block. Pulse Generator blocks produce a recurr...

1 year 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...

1 year 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...

1 year 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>>

1 year ago

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Connect blocks in a model
Connect the blocks in the model to produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/connect-blocks...

1 year ago

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

1 year ago

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

1 year 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...

1 year ago

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Sum of series of numbers
Find the sum of numbers from 1-50 using for loop.

1 year ago

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Create an array (n,n) where only diagonal elements are '1' and others are '0'
Create an array (n,n) where only diagonal elements are '1' and others are '0' EX: n = 3; then Resultant array would be [ 1 0...

1 year ago

Submitted

regexpBuilder
regexpBuilder is GUI that aims to simplify the creation of regexps in Matlab.

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Help the Patriots get to the Super Bowl
Given a football by the Patriots, return it to them with 2 psi less air in it. (The original psi is passed as a number to the...

2 years ago

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feeling VERY lucky?
Just like Matthew's problem <http://www.mathworks.com/matlabcentral/cody/problems/2793 2793> and Edward's problem <http://www.ma...

2 years ago

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pay it forward
Return any number (integer between 0 and 65535) You will pass this problem if you are the *second* person to choose that nu...

2 years ago

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Determinant without using det()
Given a square matrix A, compute the <http://en.wikipedia.org/wiki/Determinant determinant> of A. Note that you may not use t...

2 years ago

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Kurchan 5x5 - Optimal Score
Related to Problems 1646 and 2650, but bigger. Technically, all you need to do for this Cody problem is input a 5x5 matrix conta...

2 years ago

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Smallest and Largest Real Numbers
Complete the function by assigning minReal with the smallest positive double precision floating-point number, and maxReal with t...

2 years ago

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Dispatch and collect
Write a function that dispatches the single argument _x_ to multiple function handles (varargin) and concatenates vertically the...

2 years ago

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Find out value of polynomial at different value.
Find out value of polynomial at different value. Example p(s) = s + 8 For s=0, value is 8.

2 years ago

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If-then-else
Complete the function below such that if the value of x is in the range 10 to 14, inclusive, the value 18 is assigned to y. Oth...

2 years ago

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Alternative Scoring. Create an incremental spiral.
This problem is created to test an alternative Cody scoring system. It is based on the current one, but few changes are introduc...

2 years ago

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Did you say please? - Find one string within another without strfind or regexp/regexpi
For a given string sentence, determine if the string word 'please' is present or not. If so, return the string 'OK', else return...

2 years ago

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Gamma Function
Evaluate the <http://en.wikipedia.org/wiki/Gamma_function/ Gamma Function>. Gamma_val(0) = Inf Gamma_val(1.2) = 0.9182

2 years ago

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Generate Square Wave
Generate a square wave of desired length, number of complete cycles and duty cycle. Here, duty cycle is defined as the fraction ...

2 years ago

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Polite numbers. Politeness.
A polite number is ans integer that sums of two or more consecutive nonnegative integers. Politeness of a positive integer is a...

2 years ago