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I know this is an old thread but I found this function useful and found a major speed improvement: Replace str=num2str(num,['%0....
4 years ago
Remove all the consonants in the given phrase.
Input s1 = 'Jack and Jill went up the hill';
Output s2 is 'a ...
3 years ago
Calculate the nth Fibonacci number.
Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ...
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1.
Triangle numbers are the sums of successive integers. So 6 is a triangle number because
6 = 1 + 2 + 3
which can be displa...
Remove the nth column from input matrix A and return the resulting matrix in output B.
A = [1 2 3; 4 5 6];
Given a and b, return the sum a+b in c.
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...
Given the input n, return true if n is odd or false if n is even.
In MATLAB, you create a vector by enclosing the elements in square brackets like so:
x = [1 2 3 4]
Commas are optional, s...
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN.
Find the sum of all the numbers of the input vector x.
Input x = [1 2 3 5]
Output y is 11
Input x ...
Try out this test problem first.
Given the variable x as your input, multiply it by two and put the result in y.
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