Risposto
find the 3 maximum elements and their index
r = rand(100,1); [val ind] = sort(r,'descend'); val(1:3) ind(1:3) r(ind(1:3))

oltre 12 anni fa | 3

Risposto
"real positive integers or logicals" error
do you have a variable named cos? whos cos If you do, you will want to clear it out. clear cos

oltre 12 anni fa | 2

| accettato

Risposto
Using Variable Contents to Create Variable names
eval([MyPG{i} '_' RtnType{x} '= [' MyPG{i} '_' RtnType{x} ',' num2str(MyMedian) '];'])

oltre 12 anni fa | 0

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Risposto
norm square
Have you tried CRE = norm(P)^2; help norm doc norm

oltre 12 anni fa | 1

Risposto
computes days of the week
help weekday doc weekday

oltre 12 anni fa | 0

Risolto

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 ...

oltre 12 anni fa

Risolto

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".

oltre 12 anni fa

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Omit columns averages from a matrix
Omit columns averages from a matrix. For example: A = 16 2 3 13 5 11 10 8 9 7 ...

oltre 12 anni fa

Risolto

Project Euler: Problem 1, Multiples of 3 and 5
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

oltre 12 anni fa

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Sorted highest to lowest?
Return 1 if the input is sorted from highest to lowest, 0 if not. Example: 1:7 -> 0 [7 5 2] -> 1

oltre 12 anni fa

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Factorize THIS, buddy
List the prime factors for the input number, in decreasing order. List each factor only once, even if the factorization includes...

oltre 12 anni fa

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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...

oltre 12 anni fa

Risposto
Please Speed UP This Algoritm!!!
B4 = reshape(permute(bsxfun(@tims,IN4,aaa),[3 1 2]),size(aaa,3),[]); B = sum(abs(B4).^2,2);

oltre 12 anni fa | 0

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Risposto
Matlab while loop/array help.
Mary, there is no need for a while loop. You can do this simply by excluding the value you and, and then taking the min. ex...

oltre 12 anni fa | 0

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Risposto
Unrepeated random numbers
L = length(S); k = 5; ind = randperm(L,k); S_rand = S(ind);

oltre 12 anni fa | 0

Risposto
Color scaling
What you'll want to do is make sure you use a constant color axis. This can be set by using the command caxis. help caxis...

oltre 12 anni fa | 0

Risolto

Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

oltre 12 anni fa

Risolto

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

oltre 12 anni fa

Risposto
Plot 3D line object with alpha gradient
amap = linspace(1,0,size(p,1))'; set(mfig,'FaceColor','none','EdgeColor','flat',... 'LineWidth',3,'FaceVertexAlphaDat...

oltre 12 anni fa | 0

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Risposto
Geometric diagonal of a non-squared matrix
Ersilia, Assuming your image is a 2D matrix, you could take "the rectangular main diagonal" from it by using the following co...

oltre 12 anni fa | 0

Risolto

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

oltre 12 anni fa

Risolto

Sort a list of complex numbers based on far they are from the origin.
Given a list of complex numbers z, return a list zSorted such that the numbers that are farthest from the origin (0+0i) appear f...

oltre 12 anni fa

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All capital?
Are all the letters in the input string capital letters? Examples: 'MNOP' -> 1 'MN0P' -> 0

oltre 12 anni fa

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Remove the vowels
Remove all the vowels in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill' Output s2 is 'Jck nd Jll wn...

oltre 12 anni fa

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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...

oltre 12 anni fa

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Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

oltre 12 anni fa

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Given an unsigned integer x, find the largest y by rearranging the bits in x
Given an unsigned integer x, find the largest y by rearranging the bits in x. Example: Input x = 10 Output y is 12 ...

oltre 12 anni fa

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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...

oltre 12 anni fa

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Is my wife right?
Regardless of input, output the string 'yes'.

oltre 12 anni fa

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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...

oltre 12 anni fa