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...
3달 전
해결됨
Is this triangle right-angled?
Given three positive numbers a, b, c, where c is the largest number, return *true* if the triangle with sides a, b and c is righ...
3달 전
해결됨
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...
3달 전
해결됨
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...
3달 전
해결됨
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...
3달 전
해결됨
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.
<<https://imgur...
3달 전
해결됨
Side of an equilateral triangle
If an equilateral triangle has area A, then what is the length of each of its sides, x?
<<https://i.imgur.com/jlZDHhq.png>>
...
3달 전
해결됨
Area of an equilateral triangle
Calculate the area of an equilateral triangle of side x.
<<https://i.imgur.com/jlZDHhq.png>>
Image courtesy of <http://up...
3달 전
해결됨
Side of a rhombus
If a rhombus has diagonals of length x and x+1, then what is the length of its side, y?
<<https://imgur.com/x6hT6mm.png>>
...
3달 전
해결됨
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...
3달 전
해결됨
Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1.
Hint: use increment.
3달 전
해결됨
Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for:
A = [ 1 5 8 ]
then
B = [ 1 1 5 ...
3달 전
해결됨
Create a vector
Create a vector from 0 to n by intervals of 2.
3달 전
해결됨
Flip the vector from right to left
Flip the vector from right to left.
Examples
x=[1:5], then y=[5 4 3 2 1]
x=[1 4 6], then y=[6 4 1];
Request not ...
Longest run of consecutive numbers
Given a vector a, find the number(s) that is/are repeated consecutively most often. For example, if you have
a = [1 2 2 2 1 ...
3달 전
해결됨
Rescale Scores
Each column (except last) of matrix |X| contains students' scores in a course assignment or a test. The last column has a weight...
3달 전
해결됨
Calculate Inner Product
Given two input matrices, |x| and |y|, check if their inner dimensions match.
* If they match, create an output variable |z|...
3달 전
해결됨
Find MPG of Lightest Cars
The file |cars.mat| contains a table named |cars| with variables |Model|, |MPG|, |Horsepower|, |Weight|, and |Acceleration| for ...
3달 전
해결됨
Find the Best Hotels
Given three input variables:
* |hotels| - a list of hotel names
* |ratings| - their ratings in a city
* |cutoff| - the rat...
3달 전
해결됨
Crop an Image
A grayscale image is represented as a matrix in MATLAB. Each matrix element represents a pixel in the image. An element value re...
3달 전
해결됨
Calculate BMI
Given a matrix |hw| (height and weight) with two columns, calculate BMI using these formulas:
* 1 kilogram = 2.2 pounds
* 1 ...
3달 전
해결됨
Plot Damped Sinusoid
Given two vectors |t| and |y|, make a plot containing a blue ( |b| ) dashed ( |--| ) line of |y| versus |t|.
Mark the minimum...
3달 전
해결됨
Calculate a Damped Sinusoid
The equation of a damped sinusoid can be written as
|y = A.ⅇ^(-λt)*cos(2πft)|
where |A|, |λ|, and |f| ...
3달 전
해결됨
Solve a System of Linear Equations
*Example*:
If a system of linear equations in _x₁_ and _x₂_ is:
2 _x₁_ + _x₂_ = 2
_x₁...
You can also select a web site from the following list:
How to Get Best Site Performance
Select the China site (in Chinese or English) for best site performance. Other MathWorks country sites are not optimized for visits from your location.