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5th Time's a Charm
Write a function that will return the input value. However, your function must fail the first four times, only functioning prope...

1 year ago

Solved

Remove the polynomials that have positive real elements of their roots.
The characteristic equation for a dynamic system is a polynomial whose roots indicate its behavior. If any of the roots of the p...

1 year ago

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Prime factor digits
Consider the following number system. Calculate the prime factorization for each number n, then represent the prime factors in a...

1 year ago

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Find relatively common elements in matrix rows
You want to find all elements that exist in greater than 50% of the rows in the matrix. For example, given A = 1 2 3 5 ...

1 year ago

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Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the numbers. Otherwise return false. Example...

1 year ago

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Summing digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

1 year ago

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Interpolator
You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end),...

1 year ago

Submitted

global_fit
Find the global optimum for a fit optimization problem fast.

Non-uniform Discrete Data Sample Filtering
I would reccomend you using the live script task "Smooth Data". There you can graphically try out different filter methods and a...

1 year ago | 0

Solved

Birthday cake
It's Cody's 5th birthday, and you've been tasked with putting the candles on the cake. Your goal is to maximize the distance bet...

1 year ago

Question

How can I add an edge to my model?
I started using the Partial Differential Equation Toolbox and after generating a basic geometry, I wanted to add edges to it. Ho...

3 years ago | 2 answers | 0

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Question

How do you name single output functions?
The matlab style book reccomends to name single output functions like their output, which is consistent with the MALTAB function...

3 years ago | 3 answers | 0

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Reformat numbers in table
% leading zero in the format specifier specifies leading zeros in your string t.Var1 = "Subject" + string(num2str(t.Var1,'%03i'...

3 years ago | 0

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Error in the plot function/low resolution
Hi, it is hard to find (and fully understand) your problem without having your code. If I understand your question right, you...

3 years ago | 0

Question

How do you name time series / table variables?
Hello community, when having a dataset with much variables in the form of a timetable, I often name the table with its variab...

3 years ago | 1 answer | 0

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[Editable uitable] Calculate result based on user input
Right click on your table, --> Callbacks --> Add CellEditCallback This will create a subsection in your app code. Whenever a ...

3 years ago | 0

3 years ago | 0

Maximization with an objective variable in the function
It seems to me, that fmincon can only find local minima. It also has much math I dont understand, an easier (to understand) func...

3 years ago | 0

Interactive tutor using app designer
What you will need for this is evil "eval". Eval can calculate whatever the student has given you. You can catch and return e...

3 years ago | 0

How to read a numerical value from a static text box?
Did you try str2double instead of num2str? ;)

3 years ago | 1

Supress image showing until called on Live Script
A quite simple workaround would be, if you save the figure you want to be invisible, then close it and open it again from a file...

3 years ago | 0

Solved

Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

3 years ago

Question

How to Define a Symbolic Continued Fraction
Hello, I want to create and simplify a symbolic fraction, but dont now how. My fraction has the following form: I want to rep...

3 years ago | 3 answers | 0

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Question

How can I use function handles in Simulink?
Hello, i found similar questions, but none did account for my problem in Simulink. I have a function handle in my model work...

3 years ago | 1 answer | 0

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Solved

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:...

3 years ago

Smoothed daily count of each column by applying a moving average filter of length 7
To use a moving average filter in Matlab, use: M = movmean(A,k)

3 years ago | 0

Why do I get this error? "indices must either be real positive integers or logicals."
You could use N(g) to create a symbolic function with the symbolic variable g. Since g is not a symbolic variable but a vector, ...

3 years ago | 0

Question

Position or Coordinates of Labels
Hi, I want to know the Position of the xlabel (ylabel) of my plot, to insert an arrow at this position. However, when I call th...

3 years ago | 1 answer | 0

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How to solve a cosine function raised to the 3rd power
Hi, you probably forgot to define theta as a symbolic variable. Use "sym" to do that. syms theta eqn = solve(1.5936==(2-3*cos(...

4 years ago | 1

Question

Strange behaviour of simplify
Hello, when solving a math Problem today i noticed a strange behaviour of simplify and I cannot explain myself what I did wrong....

4 years ago | 2 answers | 0