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Solve expression I
Solve expression (1+sin(x))/cos(x)+cos(x)/(1+sin(x)) for given vector x.

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Solve expression III
Solve expression for given vector x. Expression = (tan(2*x^2+7*x-30.25)+log(x^3-2.25))/(nthroot(sin(x^3)^2+1/5*log(x^4-2.5),3))...

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Calculate cross product
Make function for cross product a=[1 3 2]; b=[2 4 1]; y=function(a,b) y=[-5 3 -2]

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Make random permutation
Make random permutation that consist of random number from 1 to n.

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Save variables
a=[1] Save variable a that is located in workspace into current folder. File name should be 'a.mat'

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Transpose Matrix Without Using Built-in Matlab Function
Transpose Matrix Without Using Built-in Matlab Function Example a = [1;2;3] out = [1 2 3]

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Bae Slap Counter LOL XD
How many times did your bae had slapped you? Create a formula counts how many times you are slapped

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Make sorting matrix without sort function.
It is very valuable for student to simple sorting program because they learn about use of loop and if-statement. Sort given inpu...

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Make random number between a and b
Function rand make arbitrary number between 0 and 1. Using inputs, a, and b, make random number between given two values.

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Calculate using 'for' statements
Equations are easily calculated using matlab. Especially, when we calculate multivariable(more than two) variables, "meshgrid" f...

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Analyze observation data
There are results of observation. A B C -------------------------- t=1 2.2 2.6 2.4 t=2 2.4 ...

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Calculate correlation.
There are two data. y1=[0 1 2 3 4]' y2=[2 3 4 5 6]' We can see positive relationship between y1 and y2. The relations...

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Two dimensional moving average
A=[1 2 3 4 5 1 2 2 2 3 2 3 3 3 4 1 1 4 4 2] B=[1 1;1 1]; % This is can be used for weight factor of moving a...

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Create a constant offset.
Add a constant offset to an array. For example: a=[1 3 5 9]; offset=2; y=[3 5 7 11];

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Energy of an object
Calculate the total mechanical energy of an object. Total Energy= Potential energy + Kinetic energy P.E.=m*g*h K.E.=1/2...

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Find the diagonal of the square of side L
You are given a square of side length L, find D the length of its diagonal.

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This is just like your weight :)
Imagine your weight as a sawtooth wave appended with a slope It varies yet the trend is increasing :) Decode the values throug...

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Calculate the answer to life the universe and everything
<https://en.wikipedia.org/wiki/42_(number)>

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Nth root
Nth root of a number x

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Get 1-4-3-4-4
Get the value of the indices in the title and assign it to an array

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Create a code for XNOR
Given two inputs, output XNOR of those two

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Convert degrees to radians
Given input in degrees, output to radians

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Encode Me From The Past
Given this input x = 2, 5, 1, 2, 4, 1, 1, 3 output should be (Five 2's, Two 1's, One 4, Three 1's) [2 2 2 2 2 1 1 4 1 1 1]

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Convert radians to degrees
Given input in radians, output to degrees

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Calculate inverse matrix in m by n matrix
x=(1:10)' y=roundn(2*x+7*rand(size(x)),-1) a*x=y Estimate a using inverse matrix calculation. This is principle of li...

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How to check matrix's size?
x=randi(100) y=randi(100) A=zeros(x,y) Can you measure size of matrix A?

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Calculate some equation
Using given inputs x and z, make two outputs that are y1=(xz)/(x/z)^2+14x^2-0.8z^2 y2=x^z-z^x+(x/z)^2-(z/x)^2

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Calculate numerical integration.
x=0:0.01:1 y=x.^2 Calculate area from x=0 to x=1, and y=0 to y=x^2 using numerical integration. (hint: trapz)

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Interpolate scattered data.
Most data was scattered, and there is no gird. There are three data [c] in three different area [x,y]. x=[1 3 4]; y=[1 ...

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Calculate RMSE
RMSE(Root Mean Square Error) is widely used to calculate error. Calculate RMSE between [a] and [b] a=[1 2 3 4] b=[0 1 2 ...

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