# goc3

Materials Scientist / Metallurgist / Mechanical Engineer

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**Content Feed**

Question

Moving sum with variable window

The moving sum can be calculated in MATLAB with movsum. However, that function requires that the window be a scalar. Is there a ...

6 days ago | 0 answers | 0

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answersQuestion

Convolution using non-constant kernel?

Is there a faster way of performing convolution using a non-constant kernel than with a loop? The kernel contains values complet...

6 days ago | 0 answers | 0

### 0

answersQuestion

Quicker way to subtract large vectors using a sliding window?

Below is code with comments for two versions of vector subtraction using a sliding window. I got the math to work (first method ...

6 days ago | 0 answers | 0

### 0

answersQuestion

MATLAB Compare Tool in 2021b

Some changes have been made to the comparison tool in MATLAB 2021b that are steps backwards, in my opinion. Or, there are prefer...

28 days ago | 1 answer | 0

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answerSolved

Draw matrix 'Swiss flag'( Euro 2020)

Draw a x-by-x matrix 'Swiss flag' using '0' and '1'.(x is odd and bigger than 4) Example x=5 ...

3 months ago

Solved

3n + 1 Problem (a.k.a The Collatz Conjecture)

The 3n + 1 problem (a.k.a The Collatz Conjecture) Consider the following algorithm to generate a sequence of numbers. Start wit...

3 months ago

Solved

How many Christmas presents under the tree?

For many families at Christmas, each family member gives 1 present to every other family member. The main exception is that chil...

3 months ago

Problemas in Cody Area

Mariola, I just checked your community profile and I do not see any Cody progress. Are you sure that you were logged into mathwo...

3 months ago | 0

Solved

Generate Golomb's sequence

Generate Golomb's sequence up to the given number. If n=4, then seq = [1, 2, 2, 3, 3, 4, 4, 4] If n=6, then s...

3 months ago

Solved

Wythoff Sequence

Find the lower Wythoff sequence up to n. For more information, <https://oeis.org/A000201>

3 months ago

Solved

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...

4 months ago

Solved

balance vector

Given a non-empty vector x with integer elements. x shall be called balance vector if one can split the elements of x into two g...

4 months ago

Solved

Return the sequence element II

Given positive integers x and n, return a positive integer, y, which is the nth term in the <https://en.wikipedia.org/wiki/Juggl...

4 months ago

Solved

The perimeter of a circle

Calculate the perimeter of a circle E.g If input r(radius) = 2 , the output( the perimeter of a circle) = 12.5664.

4 months ago

Solved

Find the number of rectangles

There is a m*n grade given. Find the number of rectangles in the grid. Remember, a square is also a rectangle.

5 months ago

Solved

Dimensions of Spaces

Find the dimension of the column space, null space, row space, and left null space for any matrix. Example input A=[1 2 ...

5 months ago