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Generate a vector like 1,2,2,3,3,3,4,4,4,4
Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

oltre 13 anni fa

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Filter AC, pass DC
Input x is the sampled signal vector, may have both AC and DC components. Output vector y should not contain any AC component. ...

oltre 13 anni fa

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Find the biggest empty box
You are given a matrix that contains only ones and zeros. Think of the ones as columns in an otherwise empty floor plan. You wan...

oltre 13 anni fa

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How long is the longest prime diagonal?
Stanislaw Ulam once observed that if the counting numbers are <http://en.wikipedia.org/wiki/Ulam_spiral arranged in a spiral>, t...

oltre 13 anni fa

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Given a window, how many subsets of a vector sum positive
Given a vector: [1 0 -1 3 2 -3 1] and a window of 2, A sliding window would find: 1 + 0 = 1 0 - 1 = -1 ...

oltre 13 anni fa

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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...

oltre 13 anni fa

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

oltre 13 anni fa

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Create a Multiplication table matrix...
Create a product table in this format: P = [ 1 2 3 4 5; 2 4 6 8 10; 3 6 9 12 15; 4 8 12 1...

oltre 13 anni fa

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How can i add echo to a signal
For example: to add an echo after 1s (with amplitude=0.1, phase=pi/3.5) and echo after 1.5 seconds (with a=0.5 and phase=1.2*pi)...

oltre 13 anni fa | 1

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Divisors of an integer
Given a number N, return a vector V of all integers that divide N. For example, N = 10 Then V=[1 2 5 10]

oltre 13 anni fa

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Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

oltre 13 anni fa

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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 ...

oltre 13 anni fa

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Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

oltre 13 anni fa

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

oltre 13 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...

quasi 14 anni fa

Risolto

Elapsed time is -0.005204 seconds.
Write a function that takes less than zero seconds to execute, as measured using tic and toc. For repeatability, the test case p...

quasi 14 anni fa

Risolto

Subtract two positive numbers
Given a and b as a string, return b-a without using string to number conversion functions. a and b must to be a same size and b ...

quasi 14 anni fa

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Make a diamond
Given n, odd number > 1, return n by n matrix consist of "null" and "*" characters arranged like a diamond. No toolbox funct...

quasi 14 anni fa

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Make a 1 hot vector
Make a vector of length _N_ that consists of all zeros except at index _k_, where it has the value 1. Example: Input ...

quasi 14 anni fa

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Guess Cipher
Guess the formula to transform strings as follows: 'Hello World!' --> 'Ifmmp Xpsme!' 'Can I help you?' --> 'Dbo J ifmq zpv...

quasi 14 anni fa

Risposto
Getting rid of a black background surrounding an Image
[row col pg] = size(bg); pg = zeros(row,col,'uint8'); gr = 255*ones(row,col,'uint8'); canv = cat(3,pg,gr,pg); image(canv)

quasi 14 anni fa | 0

Risposto
Compute PSD from fft compared with spectrogram
Spectrogram is time-frequency (3D=time vs freq. vs amplitude) representation of a signal and periodogram/fft is frequency only (...

quasi 14 anni fa | 0

Risposto
IFFT of Gaussian-filtered real signal is complex - why?
Your Gaussian filter is *NOT* symmetric in frequency domain. Check this out: stem(fftshift(gaussFilter)) it suppose...

quasi 14 anni fa | 1

Risposto
How can i add echo to a signal
load handel; echo_delay = 0.5; % in seconds echo_delay_s = round(echo_delay*Fs); % delay in samples ...

quasi 14 anni fa | 1

Risposto
How to get the number of bin and bin edges from chi2gof test
Use this kind [h,p,stats] = chi2gof(...) Then: NumberOfBins = numel(stats.O); And boundaries of i-th bin are: ...

oltre 14 anni fa | 0

Risposto
How to reconstruct a sound with data in MATLAB?
Try this: fs=8000; soundsc( pressure-mean(pressure), fs) You should know sampling frequency used in data collecting - here...

circa 15 anni fa | 0

Risposto
which TI's MCUs are supported by Matlab
<http://www.mathworks.com/products/embedded-coder/ti-adaptor.html>

oltre 15 anni fa | 0

Risposto
User Defined Function syntax
*Function hints* this is all about. In MATLAB R2008b writing your own hints is not possible - check response #7 on <http://blogs...

oltre 15 anni fa | 4

| accettato

Risposto
Phase-plot when using freqz
It is a matter of expressing angle in degrees or radians. Replace: plot(w,angle(H)) with plot(w, 360/(2*pi)*angle(...

oltre 15 anni fa | 1

| accettato

Risposto
Referencing the name "MATLAB"
spelling: <http://www.mathworks.com/products/> EDIT (Good point, Andrew!) pronunciation: load mtlb sound(mtlb)

oltre 15 anni fa | 1