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...
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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.
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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...
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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?
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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...
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Length of the hypotenuse
Given short sides of lengths a and b, calculate the length c of the hypotenuse of the right-angled triangle.
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Unit Matrix
Given n, you should return an n-by-n unit matrix.
Example:
If input is n=2 then
A = [ 1 0
0 1 ]
If input ...
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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?
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Square the input
Given a scalar or vector x, return the square of each element.
Example
x = [7 2]
answer = [49 4]
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square root
Find the square root (y) of an input (x).
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Make a random, non-repeating vector.
This is a basic MATLAB operation. It is for instructional purposes.
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If you want to get a random permutation of integer...