Community Profile

Contact

Top 1% contributor

fun = @(x,y) x + x.*y; N = 1e3; K = zeros(N); for i = 1:N for j = i:N K(i,j) = fun(i, j); end end

2 Answers

0

Asked 2 years ago

For example: f = @(x1, x2, ... , x15) x1 .* x2 .* ... .* x15 I want get: f = @(x) x(1,:) .* x(2,:) .* ... .*x(15,:)

*Description* Return the number of 1s in the (unsigned integer) binary representation of a number. This function should be ab...

Solve this!

2 years ago

This is a sub problem related to this problem: <http://www.mathworks.com/matlabcentral/cody/problems/621-cryptomath-addition>...

for an n-dimensional vector x, the function should return another vector 2n-dimension which each element is repeated twice. Ex...

Covering some basic topics I haven't seen elsewhere on Cody. Given an input variable 'x', save it to disk in a file named 'co...

Covering some basic topics I haven't seen elsewhere on Cody. Return the largest positive floating-point number MATLAB can han...

Given a vector x, the output y should equal the length of x.

This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

Find the base _b_ logarithm of the input decimal number _x_. Express the output as a decimal number. The first argument is the n...

The sum of the squares of the first ten natural numbers is, 1^2 + 2^2 + ... + 10^2 = 385 The square of the sum of the first ...

input -> matrix (n*m) with at least one element equal to NaN; output -> matrix(p*m), the same matrix where we deleted the enti...

Take as input an array of digits (e.g. x = [1 2 3]) and output an array of digits that is that number "incremented" properly, (i...

Covering some basic topics I haven't seen elsewhere on Cody. Rotate the input matrix 90 degrees counterclockwise (e.g. [1 2; ...

*Description* Return the first N perfect squares *Example* input = 4; output = [ 1 4 9 16 ];

Given a string s representing a list of numbers, find the five consecutive numbers that multiply to form the largest number. Spe...

The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...

Given a vector of lengths [a b c], determines whether a triangle with non-zero area (in two-dimensional Euclidean space, smarty!...

Write a function that accepts a cell array of strings and returns another cell array of strings *with only the duplicates* retai...

Covering some basic topics I haven't seen elsewhere on Cody. Return the largest positive integer MATLAB can handle.

Given a collection of points, return the indices of the rows that contain the two points most distant from one another. The inpu...

Given a handle fh to a function which takes a scalar input and returns a scalar output and an integer n >= 1, return a handle f...

This question was inspired by a Stack Overflow question forwarded to me by Matt Simoneau. Given a vector x, make an indexed pro...

Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector of numbers, output a square array with the...

If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

Given a vector of lengths [a b c], determines whether a triangle with those sides lengths is a right triangle: <http://en.wikipe...

Omit columns averages from a matrix. For example: A = 16 2 3 13 5 11 10 8 9 7 ...

1:3 -> 0; 3:5 -> 6

Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector, output true or false whether it is a colu...

<http://en.wikipedia.org/wiki/Benford%27s_law Benford's Law> states that the distribution of leading digits is not random. This...

Load more