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Risolto
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...
quasi 6 anni fa
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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| ...
quasi 6 anni fa
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Solve a System of Linear Equations
*Example*: If a system of linear equations in _x₁_ and _x₂_ is: 2 _x₁_ + _x₂_ = 2 _x₁...
quasi 6 anni fa
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Verify Law of Large Numbers
If a large number of fair N-sided dice are rolled, the average of the simulated rolls is likely to be close to the mean of 1,2,....
quasi 6 anni fa
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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...
quasi 6 anni fa
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Calculate Inner Product
Given two input matrices, |x| and |y|, check if their inner dimensions match. * If they match, create an output variable |z|...
quasi 6 anni fa
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Calculate BMI
Given a matrix |hw| (height and weight) with two columns, calculate BMI using these formulas: * 1 kilogram = 2.2 pounds * 1 ...
quasi 6 anni fa
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Compute a dot product of two vectors x and y
x and y are input vectors, d is a number and contains their dot product
quasi 6 anni fa
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Deleting an element in a matrix
For vector Grades=[98 56 78 34 100 88 87], delete the number 78 to get the following matrix Grades=[98 56 34 100 88 87] **re...
quasi 6 anni fa
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Summation of array
Given an array, Find the sum of all of the elements in it Examples: Input x = [1 2 3 5; 4 5 6 7]; Output y is 33
quasi 6 anni fa
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Replacing a row
For matrix G=[1 2 3; 4 5 6; 7 8 9] Replace the 2nd row with 8s **remember to create matrix G
quasi 6 anni fa
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Arrange vector in ascending order
Arrange a given vector in ascending order. input = [4 5 1 2 9]; output = [1 2 4 5 9];
quasi 6 anni fa
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Count number of words in string
Count number of words in string Examples 'hi', answer is 1 'hi hi', answer is 2 'I enjoy cody', answer is 3
quasi 6 anni fa
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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...
quasi 6 anni fa
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The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".
quasi 6 anni fa
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Tell me the slope
Tell me the slope, given a vector with horizontal run first and vertical rise next. Example input: x = [10 2];
quasi 6 anni fa
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Is A the inverse of B?
Given a matrix A and a matrix B, is A the inverse of B? >>A=[2,4;3,5]; >>B=[-2.5,2;1.5,-1]; >>isInverse...
quasi 6 anni fa
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Simple equation: Annual salary
Given an hourly wage, compute an annual salary by multiplying the wage times 40 and times 50, because salary = wage x 40 hours/w...
quasi 6 anni fa
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Find the Oldest Person in a Room
Given two input vectors: * |name| - user last names * |age| - corresponding age of the person Return the name of the ol...
quasi 6 anni fa
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Can we make a triangle?
Given three positive number, check whether a triangle can be made with these sides length or not. remember that in a triangle su...
quasi 6 anni fa
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Calculate the area of a triangle between three points
Calculate the area of a triangle between three points: P1(X1,Y1) P2(X2,Y2) P3(X3,Y3) these three points are the vert...
quasi 6 anni fa
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Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.
quasi 6 anni fa
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Magic is simple (for beginners)
Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.
quasi 6 anni fa
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Make a random, non-repeating vector.
This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...
quasi 6 anni fa
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Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...
quasi 6 anni fa
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Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...
quasi 6 anni fa
