Question

Computing electrostatic force in pde toolbox

I want to compute the electrostatic force on a conductor after solving the Poisson equation in the domain. The code to solve the...

4 months ago | 0 answers | 0

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Fibonacci sequence

Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

5 months ago

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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...

5 months ago

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Swap the first and last columns

Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

5 months ago

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Make a checkerboard matrix

Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

5 months ago

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Who knows the last digit of pi?

There is only one man who knows the last digit of pi, who is that man? Give the name of that man, who, by popular believe, can ...

5 months ago

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Find all elements less than 0 or greater than 10 and replace them with NaN

Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

5 months ago

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Pizza!

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

5 months ago

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Column Removal

Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; ...

5 months ago

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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...

5 months ago

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Determine if input is odd

Given the input n, return true if n is odd or false if n is even.

5 months ago

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Select every other element of a vector

Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

5 months ago

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Find the sum of all the numbers of the input vector

Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

5 months ago

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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:...

5 months ago

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Make the vector [1 2 3 4 5 6 7 8 9 10]

In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

5 months ago

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First N Perfect Squares

*Description* Return the first N perfect squares *Example* input = 4; output = [ 1 4 9 16 ];

5 months ago

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how can I see equation openly like (x+y)^2 = x^2+2xy+y^2

Try the command simplify; see a sample code below; syms x y simplify((1 - x^2)/(1 - x))

how can I see equation openly like (x+y)^2 = x^2+2xy+y^2

Try the command simplify; see a sample code below; syms x y simplify((1 - x^2)/(1 - x))

5 months ago | 0

Answered

Changing the Surface Color Using the "surf" Command

If you are looking for a single colored surface, use colormap to define the desired color; Please see below an example; [x,y,z...

Changing the Surface Color Using the "surf" Command

If you are looking for a single colored surface, use colormap to define the desired color; Please see below an example; [x,y,z...

5 months ago | 0

Answered

Identify surfaces of geometry that is imported as stl file to matlab

Please check the tool given in the below link. I think it has the provision to select the surfaces. STL tool - CAD STL

Identify surfaces of geometry that is imported as stl file to matlab

Please check the tool given in the below link. I think it has the provision to select the surfaces. STL tool - CAD STL

5 months ago | 0

Answered

Shifting the z-position of imagesc() when used along with surf

The solution has been shared in the fileexchange incase someone is interested. https://in.mathworks.com/matlabcentral/fileexcha...

Shifting the z-position of imagesc() when used along with surf

The solution has been shared in the fileexchange incase someone is interested. https://in.mathworks.com/matlabcentral/fileexcha...

5 months ago | 0

Submitted

surfImagesc

This function superimpose the 2d imagesc plot along with 3-D surf plot

5 months ago | 4 downloads |

Question

Shifting the z-position of imagesc() when used along with surf

I want to create a surf plot along with an image on the same object as given below; figure(1) surf(x,y,z);hold on imagesc(x,y...

5 months ago | 2 answers | 0

Question

defining geometry in pdetool

Can anyone suggest me how to generate a complex geometries other than those defined already in pdetool. I tried using pdepoly wi...

8 years ago | 1 answer | 0