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Set x value to each odd index of vector y.
Set x value to each odd index of vector y.

casi 10 años hace

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Delete x value in given vector y.
Delete x value in given vector y. Exapmle x=5; y=[ 1 2 5 6 74 5 2 5] result=[1 2 6 74 2]

casi 10 años hace

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Create square matrix with given conditions.
Create square matrix which should be like given matrix M. M = [ n^2 n*(n-1) n*(n-2) ... n*2 n; n*(n-1)...

casi 10 años hace

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Find the outcast
All pairs have the same difference except for one. Output the index of the latter Example: input =[0 1; 1 0; 2 3; 4 5;] ou...

casi 10 años hace

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Integrate Me
Given polynomial, output the integral (with k = 1 for simplicity purposes) Example: input = [2 1] % 2x+1 output = [1 1 1]...

casi 10 años hace

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Derive Me Crazy
Given a polynomial, output its derivative Example: input = [1 0 0]%x^2 output = [2 0]%2x

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Get Cody's screen size
Return an object that helps this problem's test suite return Cody's screen size.

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calculate the day of the year from a date string.
'09-Oct-2016' is the 283rd day of the year. So doy = dayoftheyear('09-Oct-2016') should return doy = 283

casi 10 años hace

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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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Extract area
There are observed data c and its location (x,y) x=1:0.1:10 y=1:0.1:10 [x,y]=meshgrid(x,y) c=x.^2+y.^2 Extract data c i...

casi 10 años hace

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Can we make a triangle?
Given three positive number, check whether a triangle can be made with these sides length or not. remember that in a triangle su...

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Calculate 3D Distance
Given 2 vectors (1st is initial position, 2nd is the destination) calculate the distance in 3D Example in1 = [0 0 0] in2...

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Pointwise multiplication of vectors.
Pointwise multiplication of vectors x and y. Example x= [1 3 5 7 9 11 13 15 17 19] y=[ 1 4...

casi 10 años hace

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Refresh your system of equations
Given square matrix, and solution vector, find the values of the variables Example: xyz = [1 -1 2; 0 2 5; 4 0 -3]; //x-y+2...

casi 10 años hace

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Calculate circle's property
[A R]=function(r) r is radius, A is area of circles, R is circumference.

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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.

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Calculate inverse matrix in square matrix
A=eye(3) Calculate inverse matrix of given input. B=function(A) ans = 1 0 0 0 1 0 ...

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Vectors multiplication.
Multiply two vectors x transposed and y.Example x = [1 2 3 4 5 6 7 8 9 10 ] y = [ 1 2 ...

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Solve expression II
Solve given expression. alpha=0.1(-x-y-50)/(exp((-x-y-50)/10)-1) beta=5exp((-x+y-60)/20) result=alpha+beta;

casi 10 años hace

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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))...

casi 10 años hace

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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]

casi 10 años hace

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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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Remainder Calculator Without Using built-in mod(x)
Given x, and divisor. Compute for the remainder without using mod() function

casi 10 años hace

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Modified Upper Matrix Mock
Given a vector v=[1 3 6 9 11], turn it into a matrix 'ramp' like so: m=[1 3 6 9 11; 0 3 6 9 11; 0 0 6 9 11; 0 0 0 9 11; 0 0 0...

casi 10 años hace

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Circular Shift Me
Given a vector v=[1 3 6 9 11], circular shift them while iterating m=[1 3 6 9 11; 11 1 3 6 9; 9 11 1 3 6; 6 9 11 1 3; 3 6 9 1...

casi 10 años hace

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Solve the system of linear equations
4x - 2y +6z=8 2x + 8y +2z=4 6x + 10y +3z=0 Find x,y,z. Output should be a=[x;y;z].

casi 10 años hace

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Set x value to each even index of vector y.
Set x value to each even index of vector y.

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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...

casi 10 años hace