Area of a Square
Given the length x of the side of a regular square, find the area of the square, A.
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area of an annulus
Given the diameter d of the inner circle of the annulus. Given length z of a chord of the outer circle of the annulus. This chor...
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Back to basics 21 - Matrix replicating
Covering some basic topics I haven't seen elsewhere on Cody.
Given an input matrix, generate an output matrix that consists o...
Create an anti-identity matrix
Create an anti-identity matrix of given dimension.
Examples
n = 2
A = [0 1; 1 0]
n = 3
A = [0 0 1; 0 1 0; 1 0 0...
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MATLAB Basic: rounding III
Do rounding towards minus infinity.
Example: -8.8, answer -9
+8.1 answer 8
+8.50 answer 8
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Back to basics 22 - Rotate a matrix
Covering some basic topics I haven't seen elsewhere on Cody.
Rotate the input matrix 90 degrees counterclockwise (e.g. [1 2; ...
Volume Pillar
Calculate the volume of a pillar with radius l and heigth ar.
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Calculate area of sector
A=function(r,seta)
r is radius of sector, seta is angle of sector, and A is its area. Area of sector A is defined as 0.5*(r^2...
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Rounding off numbers to n decimals
Inspired by a mistake in one of the problems I created, I created this problem where you have to round off a floating point numb...
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Swap the input arguments
Write a two-input, two-output function that swaps its two input arguments. For example:
[q,r] = swap(5,10)
returns q = ...
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Generate a vector like 1,2,2,3,3,3,4,4,4,4
Generate a vector like 1,2,2,3,3,3,4,4,4,4
So if n = 3, then return
[1 2 2 3 3 3]
And if n = 5, then return
[1 2 2 3 3 3 4...