Solved


Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

14 years ago

Solved


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...

14 years ago

Problem


Mersenne Primes
A Mersenne prime is a prime number of the form M = 2^p - 1, where p is another prime number. For example, 31 is a Mersenne prim...

14 years ago | 7 | 972 solvers

Solved


Mersenne Primes
A Mersenne prime is a prime number of the form M = 2^p - 1, where p is another prime number. For example, 31 is a Mersenne prim...

14 years ago

Solved


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...

14 years ago

Solved


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

14 years ago

Solved


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

14 years ago

Solved


Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

14 years ago

Solved


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

14 years ago

Solved


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...

14 years ago

Solved


Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

14 years ago

Solved


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 ...

14 years ago

Solved


Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

14 years ago

Solved


Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

14 years ago

Solved


Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

14 years ago

Submitted


Matrix Surround Encoding
Encodes 5-channel surround-sound signal into stereo matrix-encoded signal based on Dolby PLII.

14 years ago | 2327 downloads |

4.0 / 5

Answered
how to run .exe file in matlab
The built in function |system(command)| will execute the given command (a string) in a windows command prompt. So you might hav...

15 years ago | 2

Answered
MATLAB code for Butterworth filter having sound as a input signal
MATLAB has a built in function |butter| in the Signal Processing Toolbox that will return coefficients for a Butterworth high- o...

15 years ago | 1

| accepted

Answered
x.abs()?
Although your variable |x| is technically a MATLAB "class" ( |double| ), it does not have any methods associated with it. While...

15 years ago | 0

Answered
Plot Title Problem
Escape it with the backslash. |title('Plot\_Dot')|

15 years ago | 1

Answered
Trouble with For loop within If statement.
|if for| is not valid syntax. If you want to break out of the loop when the errors for all points are <= errmax, then the corr...

15 years ago | 0

Submitted


Windows System Sounds
Play any Windows system sound from within MATLAB.

15 years ago | 592 downloads |

5.0 / 5

Answered
MATLAB one-liners
Read in an image and convert it to a grayscale, double matrix of data range 0..1 im= rgb2gray(double(imread('filename.jpg'))/...

15 years ago | 0