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cross in array
Make a cross from "1" in odd size array. Other value from array should be equal to "0"; As input you get length of side of arra...
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Find out value of sine given by degree.
Find out value of sine given by degree. If theta=30, it's value must be 0.5.
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Square the input
Given a scalar or vector x, return the square of each element. Example x = [7 2] answer = [49 4]
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Element by element multiplication of two vectors
Given two input vectors, return the element-by-element product. Example A = [1 2 3] B = [7 3 1] The answer should be...
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Spiral Matrix
for a given integer n>=3, generate a matrix of nxn such that the value n^2 is at bottom left and its decreasing towards center ...
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Vector Magnitude Calculator
'a' is a vector that starts at the origin and ends at (x, y). Find ||a||. Hint: It is as simple as "ABC".
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Sum the real and imaginary parts of a complex number
Sum the real and imaginary parts of a complex number. Example c = 1+2i has the solution 1 + 2 = 3
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Which coins to give
I was in shop today. I admired, how shop assistant had to think, which coins to give me. The task is we have a vector v=[0.5 0....
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Convert array of decimal numbers into binary numbers array.
Convert array of decimal numbers into binary numbers array. Example x = [1 2 3 4 5 6 7 8 ]; re...
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Convert array of decimal numbers into hexadecimal numbers array.
Convert array of decimal numbers into hexadecimal numbers array. Example x =[ 32 33 34 35 36 37 38 ...
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Find Adjacency Matrix
Graph is undirected. (s,t) in node pairs. Please, return full storage version of the matrix.(use _full(A)_ ) Input: s...
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What does the "B" in Benoit B Mandelbrot stand for?
Tip https://en.wikipedia.org/wiki/Mandelbrot_set
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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 ...
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What do you get if you multiply six by nine?
The Hitchhiker's Guide to the Galaxy based task.
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Find 1's Complement
Find 1's complement of a binary number For Example: x = 10011010 1's complement of x = 01100101
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Solve t^(a*x^2+b*x+c)=s
Solve t^(a*x^2+b*x+c)=s. Return x vector as result. Example a=1, b=2, c=1, t=3, s=15. Result x(1)= 0.5700 x(2)=-2.5700 H...
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My cat likes strings!!
Create a string of specified length or more. It's that simple!
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Find the sides of an isosceles triangle when given its area and height to its base.
Find the sides of an isosceles triangle when given its area and height to its base. Example S=12, h=4, result will be [5 5 6]...
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Solve the system of equations.
_Ax=b_ * _A_ - square coefficient matrix * _b_ - right side column vector Find vecor _x_.
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Solve the following system of equations.
x-2y+3z=7 2x+y+z=4 -3x+2y-2z=-10
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Find the sum of the negative elements under the main diagonal.
Example Input A=[1 2; -3 0] Output -3
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Picture Browser
browse *.jpg picture under current directory
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A little bit of luck needed
This one may require a little bit of guess work, but it is possible. Hints: - The same solution might fail the tests once and ...
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Put all numbers in a string inside square brackets
Examples: 'left3down2' -> 'left[3]down[2]' 'fiat500' -> 'fiat[500]'
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Skip empty cell entries
From {'a';'b';[];'c'} return {'a';'b';'c'} using a oneliner.
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Explode string
Convert a sentense into a cell of strings (i.e. use space as delimiter).
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Logarithm with base other than 'e'
Standard log() function returns natural logarithm with base equal to Euler constant. Compute logarithm for a given base.
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Solution to Ax=b with singular A
Find solution to Ax=b problem if A is singular. Hint: Compute a minimum norm solution
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Number of elements in matrix
Calculate the # of elements for given matrix
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