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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...

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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 ...

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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...

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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| ...

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Solve a System of Linear Equations
Example: If a system of linear equations in x₁ and x₂ is: 2x₁ + x₂ = 2 x₁ - 4 x₂ = 3 Then the coefficient matrix (A) is: 2 ...

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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...

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Convert from Fahrenheit to Celsius
Given an input vector |F| containing temperature values in Fahrenheit, return an output vector |C| that contains the values in C...

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Calculate Amount of Cake Frosting
Given two input variables |r| and |h|, which stand for the radius and height of a cake, calculate the surface area of the cake y...

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

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How to use sqlwrite
Hi Blue, The error in the code is beacuse of the following lines in your code database_table = table( productNumber, stockNu...

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simultaneous equation when a matrix has multiple sets inside
Hi Rohan, for loop can be used to solve this question. for i=1:51 %% as there are 51 sets of simultaneous equations ...

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Why does imshow change position of a figure?
Hi LucasH, The "imshow" will modify the figure size based on the image size. To change the figure position, use the "Position...

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plotting an ode.
Hi John, Refer to the 2nd Order van der Pol ODE example in the ode45 documentation.

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Paste figure from vector graphics clipboard
Hi Benjamin, "clipboard('paste')" and "clipboard('specialpaste')" are used to paste the text data on to MATLAB. Pasting Vect...

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How to make a loop that will find common elements between many arrays of strings, and omit the arrays that have already been compared?
Hi Gemma, The following code helps in converting the table to array of M*N with each row corresponding to the table row A = ...

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The Piggy Bank Problem
Given a cylindrical piggy bank with radius g and height y, return the bank's volume. [ g is first input argument.] Bonus though...

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How to call an existing function 3 three times by creating an another function?
Hi Praneethi, function function_name() for i = 1:3 % using a for loop to call the function gui_changed_color(...

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