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Chip Pearson's website is an excellent source for Excel VBA questions. I have been programming with VBA for several years and h...
4 years ago
Reverse the vector elements.
Input x = [1,2,3,4,5,6,7,8,9]
Output y = [9,8,7,6,5,4,3,2,1]
8 months ago
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.
Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...
Given the matrix a, return the index r of the row with the most nonzero elements. Assume there will always be exactly one row th...
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...
4 years ago
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for.
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...
Given a string such as
s = '011110010000000100010111'
find the length of the longest string of consecutive 1's. In this examp...
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...
There will always be at least one prime in the matrix.
Input in = [ 8 3
5 9 ]
Output out is 4...
Find the mean of each consecutive pair of numbers in the input row vector. For example,
x=[1 2 3] ----> y = [1.5 2.5]
Given two lists of numbers, determine the weighted average.
[1 2 3] and [10 15 20]
should result in
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.
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false.
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN.
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...
Triangle numbers are the sums of successive integers. So 6 is a triangle number because
6 = 1 + 2 + 3
which can be displa...
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 a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.]
Regardless of input, output the string 'yes'.
Check if sorted.
Input x = [1 2 0]
Output y is 0
Given n, find the sum of the digits that make up 2^n.
Input n = 7
Output b = 11
since 2^7 = 128, and 1 + ...
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...
Find the sum of all the numbers of the input vector x.
Input x = [1 2 3 5]
Output y is 11
Input x ...
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...
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