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Solved
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...
ongeveer 10 jaar ago
Solved
Equal to their cube
Tell me three real numbers that are equal to their cubes?
ongeveer 10 jaar ago
Solved
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...
ongeveer 10 jaar ago
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Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.
ongeveer 10 jaar ago
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surrounded matrix
With a given matrix A (size m x n) create a matrix B (size m+2 x n+2) so that the matrix A is surrounded by ones: A = [1 2 ...
ongeveer 10 jaar ago
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Basics: 'Find the eigenvalues of given matrix
Find the eigenvalues y for a given matrix x.
ongeveer 10 jaar ago
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Who invented zero?
We know the importance zero in computer science, mathematics... but who invented zero? Clue: He was the first in the line ...
ongeveer 10 jaar ago
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Number of toolboxes?
Return a number equal to the number of toolboxes available to the Cody solvers.
ongeveer 10 jaar ago
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What's Your BMI?
Find the body mass index. For reference, please refer to Wikipedia here: <http://en.wikipedia.org/wiki/Body_mass_index body ...
ongeveer 10 jaar ago
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Number of digits in an integer
Specifies how many digits in a given integer. Example: in=100 ==> out=3
ongeveer 10 jaar ago
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only input
Return the output without writing any code into the function.
ongeveer 10 jaar ago
Solved
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...
ongeveer 10 jaar ago
Solved
Getting the absolute index from a matrix
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get the <http://www.ma...
ongeveer 10 jaar ago
Solved
Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x. <<http://upload.wikimedia.org/wikipedia/commons/e/e0/Equilateral-tr...
ongeveer 10 jaar ago
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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...
ongeveer 10 jaar ago
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Is it a number?
Determine if input is numeric. If it is,output is 1; if it is not, output is 0.
ongeveer 10 jaar ago
Solved
Dimensions of a rectangle
The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...
ongeveer 10 jaar ago
Solved
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...
ongeveer 10 jaar ago
Solved
Length of a short side
Calculate the length of the short side, a, of a right-angled triangle with hypotenuse of length c, and other short side of lengt...
ongeveer 10 jaar ago
Solved
Area of an Isoceles Triangle
An isosceles triangle has equal sides of length x and a base of length y. Find the area, A, of the triangle. <<http://upload...
ongeveer 10 jaar ago
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High school cafeteria
Given an input vector of positive integers, return a row vector with the primes first (in increasing order) and the composites n...
ongeveer 10 jaar ago
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Reindex a vector
You are given two vectors of equal length. Vector N has numeric values (no Inf or NaN) while vector IDX has integers. Place th...
ongeveer 10 jaar ago
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Find out missing number from a vector of 9 elements
You are given a vector of size 9, x = [x1 x2 x3 x4 x5 x6 x7 x8 x9] Elements of x may be randomly selected without repeati...
ongeveer 10 jaar ago
Solved
Determine the number of odd integers in a vector
Determine the number of unique odd integers in a vector. Examples: Input x = [2 5 8 3 7 1]; Output y = 4; Inp...
ongeveer 10 jaar ago
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Getting the row and column location from a matrix
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to get <http://www.mathwo...
ongeveer 10 jaar ago
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Determine if a Given Number is a Triangle Number
*Description:* Determine if the elements of an input array are triangle numbers and return the result as an array with the sa...
ongeveer 10 jaar ago
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Create matrix of replicated elements
Given an input element x, and the dimensions, (m, n) return a matrix of size m x n filled with element x. Example: Input: ...
ongeveer 10 jaar ago
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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...
ongeveer 10 jaar ago
Solved
middleAsColumn: Return all but first and last element as a column vector
Given input A, return all but the first and last elements, arranged as a column vector. (I.e., all dimensions after the first s...
ongeveer 10 jaar ago