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Is the Point in a Circle?
Check whether a point or multiple points is/are in a circle centered at point (x0, y0) with radius r. Points = [x, y]; c...

約9年前

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

約9年前

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true or false
if the matrix has a zero, return true. else, return false

約9年前

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Radians to Degrees
Convert radians to degrees.

約9年前

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Find the sum of the elements in the "second" diagonal
Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.

約9年前

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

約9年前

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Back to basics 1 - Saving
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...

約9年前

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

約9年前

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Balanced number
Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

約9年前

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Matlab Basics - Rounding I
Write a script to round x DOWN to the next lowest integer: e.g. x = 2.3 --> x = 2 also: x = 2.7 --> x = 2

約9年前

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Remove all the consonants
Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

約9年前

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"mirror" matrix
Create n x 2n "mirror" matrix of this type: e.g. for n = 2 m = [1 2 2 1;1 2 2 1] e.g. for n = 3 m = [1 2 3 3 2 1...

約9年前

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Given a window, how many subsets of a vector sum positive
Given a vector: [1 0 -1 3 2 -3 1] and a window of 2, A sliding window would find: 1 + 0 = 1 0 - 1 = -1 ...

約9年前

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Find out sum of all elements of given Matrix
Find out sum of all elements of given Matrix A=[1 2 3;4 5 6 ;7 8 9]; Answer must be: 45 *If you like this problem, pl...

約9年前

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sum of first 'n' terms
Given n=10, find the sum of first 'n' terms Example: If n=10, then x=1,2,3,4,5,6,7,8,9,10. The sum of these n=10 terms is 55...

約9年前

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

約9年前

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letter yes yes & letter no no
Split a string into two strings, wherein the first string has all alphabetic letters and the second string has all the remaining...

約9年前

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

約9年前

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given 3 sides, find area of this triangle
1:3 -> 0; 3:5 -> 6

約9年前

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Replace Vector Elements
Replace all elements in a vector which are equal to or smaller than zero with 0.1. Example: A = [1 2 3 -1 0 2 -3 -80]; ...

約9年前

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Create a vector whose elements depend on the previous element
The idea is to create a vector A whose elements depend on the previous element : *A(i+1) = 2*A(i)+1* *2 Inputs*: - A : The...

約9年前

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Return area of square
Side of square=input=a Area=output=b

約9年前

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Basic commands - rounding
make a function which will round to integer, which is nearer to zero. Example x=[-2.5 2]; y=[-2 2];

約9年前

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Triangle sequence
A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...

約9年前

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Find a Pythagorean triple
Given four different positive numbers, a, b, c and d, provided in increasing order: a < b < c < d, find if any three of them com...

約9年前

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Side of a rhombus
If a rhombus has diagonals of length x and x+1, then what is the length of its side, y? <<http://upload.wikimedia.org/wikipe...

約9年前

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Is this triangle right-angled?
Given any three positive numbers a, b, c, return true if the triangle with sides a, b and c is right-angled. Otherwise, return f...

約9年前

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determine the sum of the squares
if x = 4, the solution will be: y = 1^2+2^2+3^2+4^2=1+4+9+16 = 30.

約9年前

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Side of an equilateral triangle
If an equilateral triangle has area A, then what is the length of each of its sides, x? <<http://upload.wikimedia.org/wikipe...

約9年前

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Find the product of a Vector
How would you find the product of the vector [1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0] times 2?; x = [1 : 0.5 : 6]; y ...

約9年前