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Magnitude of a vector
Given a vector x, what is its magnitude?

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Find difference of two set as per example
Find difference of two set as per example Say x=[1:5] and y=[2:6] then, set_diff(x,y) should give output[1] and set_diff(y...

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Where is the number that you want to find?
For a given matrix A, find where the input number x appears. Do this task by returning the vector which contains the row and th...

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Slope of the line passing through two points
Determine the slope of a line passing through the points a=[x1 y1] and b=[x2 y2].

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Real

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Calculate solution of given polynomial
For example, y=function([3 -2 -4]) In here, input vector indicate 3*x^2-2*x-4, y is solution of former equation. y=[1.5...

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Matlab Basics II - Operations and Matrix Dimensions
Write a function that takes two inputs, a & b, and outputs the sum and product of the two matrices. The matrices have OPPOSITE d...

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Solving Quadratic Equations (Version 2)
Before attempting this problem, solve version 1: <https://www.mathworks.com/matlabcentral/cody/problems/2510-solving-quadratic-...

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Better Index Number
Let's say you want to save many, many files and append these files with a certain sortable index number. As you probably know, y...

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Reverse CHECKBOX MATRIX with 69
Create a reverse checkbox matrix with '69'. Where the size is the input and output will be a square checkbox matrix. Exa...

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find out eigenvector of matrix
find out eigenvector of matrix A =eye(3); Answer is [0 0 1; 0 1 0; 1 0 0];

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wipe out!
make all the elements in given x zero.

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sign function

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Create tangent function out of cosine only
Please don't use tangent and sine functions

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Times 5
Try out this test problem first. Given the variable x as your input, multiply it by five and put the result in y. Examples...

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Matrix Ax=B problem
Take a incoming A and B vector, and solve for x

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Sort in descending order.

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Calculate the area of a circle
Given a circle of diameter x calculate its area

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divide by 5

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persistant sum
There will be 9 tests for this problem. In each test you will be provided with 2 integers n=[n1,n2], where n2 is equal to t...

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Summation of integers

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Calculate sin(x) without sin(x)
Calculate y = sin(x) x = 0 -> y= 0 without the use of sin(x) or cos(x)

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Calculate cosine without cos(x)
Solve cos(x). The use of the function cos() and sin() is not allowed.

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Mile to Kilometer
x is mile and y is km

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Replace 0 to NaN!
In given matrix A=[1 nan nan; 2 2 nan; nan nan 1]; replace NaN to 0. Use matrix A as a input.

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Times 10
Try out this test problem first. Given the variable x as your input, multiply it by ten and put the result in y. Examples:...

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Make a list string
Given a cell string, produce a string separating the items with spaces and commas and with an 'and' preceding the final item, an...

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Display negative numbers
Given array,x, display all the negative numbers and display output as y. Example x=[1 -2 3 -4] , output is y=[-2 -4].

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Can the given sides form a triangle?
Can the three given sides form a triangle?

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Square
square root of x

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