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Unique values without using UNIQUE function
You must return unique values in a vector in *stable* mode without using the unique function. About stable order flag: ...

13 years ago

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Solving a quadratic equation
Given a, b and c, Return the solution of the following quadratic equation: a*x^2 + b*x + c = 0.

13 years ago

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Permute diagonal and antidiagonal
Permute diagonal and antidiagonal For example [1 2 3;4 5 6;7 8 9] -> [3 2 1;4 5 6;9 8 7] WITHOUT diag function (and variable n...

13 years ago

Answered
Help finding the sum of neighboring elements in a matrix?
A 2D convolution should work for your purposes: help conv2 To sum elements, just make your filter a matrix of ones. You...

13 years ago | 2

Answered
nested if else statements
x = 5.5 if x > 6 disp('x is greater than 6') elseif x >= 3 && x <= 6 if mod(x,1) ~= 0 ...

13 years ago | 4

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Answered
GigE Camera Error: Unable to set PacketSize
Have you tried setting the Packet Size property for your camera? Outside of matlab, you should make sure Jumbo Frames are enable...

13 years ago | 0

Solved

drowsy?
This dog() may be drowsy or function immediately when you call, return 1 or 0 accordingly within 2/10 second.

13 years ago

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Sum the elements in either diagonal of a square matrix
Sum the elements of a square matrix that lie on either the major diagonal or anti-diagonal.

13 years ago

Answered
summing up array element
help cumsum >> s = cumsum(p) s = 3 9 11 16

13 years ago | 1

Answered
How to find specifying pattern in the string
It sounds like *regexp* would do what you're wanting. idx = regexp(s,'V[bx]x_') If idx returns anything other than empty...

13 years ago | 2

Solved

Count from 0 to N^M in base N.
Return an array of numbers which (effectively) count from 0 to N^M-1 in base N. The result should be returned in a matrix, with ...

13 years ago

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Convert from Base 10 to base 5
Convert the input number from base 10 into base 5: for example: if a(in base 10)= 5 then a(in base 5)= 10

13 years ago

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Special matrix
Make a square matrix with this shape. For n=4 M = 1 1 0 0 1 0 1 0 0 1 0 ...

13 years ago

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ln not recognised as a command
help log If you read the help file for *log*, you'll see that it _is_ the natural logarithm function. *ln* is not a built-i...

13 years ago | 2

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Factorial !
Calculate the factorial of a non-negative integer without using the built in function *factorial*

13 years ago

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newRMS
find root mean square of a signal x in less time than the test code and accurate to six places.

13 years ago

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Find third Side of a right triangle given hypotenuse and a side. No * - or other functions allowed
Find the remaining side of a triangle given the hypotenuse and a side. However, the normal functions and symbols are not allowe...

13 years ago

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Implement a counter
Write a function that returns a function that counts the number of times it is invoked. Example: >> h = counter; >> h() ...

13 years ago

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Fix y_correct : Hack
The Test Suite has an error. Fix the y_correct value. (See the tags for hints)

13 years ago

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Get me! v2
Exploiting cody v2

13 years ago

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Moving average (variable kernel length)
Find the moving average in a vector. The kernel length is a variable. For example x = 1:10 kernel_length = 2 would r...

13 years ago

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Snakes on a plane
Given the dimensions of a 2-d plane, create a matrix where a "snake" of ones occupies the plane from top left to bottom right. ...

13 years ago

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Make a Plot with Functions
Make a plot and test

13 years ago

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Proper Factors
Generate the proper factors of input integer _x_ and return them in ascending order. For more information on proper factors, ref...

13 years ago

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GJam: 2013 Rd1a Bullseye Painting
<http://code.google.com/codejam/contests.html Google Code Jam> 2013 Round 1a Bullseye challenge is to determine how many full ri...

13 years ago

Answered
Determine if a value is an Empty Matrix: 0 x 1 and replace with NaN
help isempty Your code would look something like this: if l == 1 fint = intersect(find(b(:,1)==k),find(b(:,2)==...

13 years ago | 1

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Answered
GUI table, add/remove row buttons
Here's a snippet of code I've used in the past for adding and subtracting rows. I modified it for use with a pushbutton. This as...

13 years ago | 0

| accepted

Solved

Numeric array to cell array of strings (easy)
Given a numeric array (A) and a 1xk cell array of strings (C), return a cell array (B) that is the same size as A and in which e...

13 years ago

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hackathon impossible
You might have found a solution to our <http://www.mathworks.com/matlabcentral/cody/problems/205-hackathon-the-beginnings previo...

13 years ago

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wait for me
wait exactly x seconds please, need not be more than 2 seconds but must be accurate within say 50 milliseconds, your function mu...

13 years ago