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I have not been able to find out what is the underlying quadrature formula in Matlab's builtin function integral.
Asked 3 months ago
Hello: I have Matlab R2009b on a Windows Vista x64. I have Visual Studio 2005 SP1 with all the updates correctly installed. I ha...
5 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]
1 year ago
Let's assume you have a number of calculations to perform, that depend on each other. E.g. 'A' can be calculated, once the outco...
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 vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false.
Given two lists of numbers, determine the weighted average.
[1 2 3] and [10 15 20]
should result in
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.]
There will always be at least one prime in the matrix.
Input in = [ 8 3
5 9 ]
Output out is 4...
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...
Triangle numbers are the sums of successive integers. So 6 is a triangle number because
6 = 1 + 2 + 3
which can be displa...
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.
Calculate the nth Fibonacci number.
Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ...
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 row vector of numbers, find the indices of the two nearest numbers.
[index1 index2] = nearestNumbers([2 5 3...
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...
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...
Given the input n, return true if n is odd or false if n is even.
Regardless of input, output the string 'yes'.
Given a and b, return the sum a+b in c.
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.
In MATLAB, you create a vector by enclosing the elements in square brackets like so:
x = [1 2 3 4]
Commas are optional, s...
Classify x data as
if x>=0 then y=1
if x<0 then y=0
x = [ -2 -1 0 1 2]
y = [ 0 0 1 1 1]
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