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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...
9 years ago
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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.
9 years ago
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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]
9 years ago
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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...
9 years ago
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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 ...
9 years ago
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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".
9 years ago
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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
9 years ago
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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....
9 years ago
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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...
9 years ago
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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 ...
9 years ago
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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...
9 years ago
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What does the "B" in Benoit B Mandelbrot stand for?
Tip https://en.wikipedia.org/wiki/Mandelbrot_set
9 years ago
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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 ...
9 years ago
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What do you get if you multiply six by nine?
The Hitchhiker's Guide to the Galaxy based task.
9 years ago
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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
9 years ago
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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...
9 years ago
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My cat likes strings!!
Create a string of specified length or more. It's that simple!
9 years ago
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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]...
9 years ago
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Solve the system of equations.
_Ax=b_ * _A_ - square coefficient matrix * _b_ - right side column vector Find vecor _x_.
9 years ago
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Find the sum of the negative elements under the main diagonal.
Example Input A=[1 2; -3 0] Output -3
9 years ago
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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 ...
9 years ago
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Put all numbers in a string inside square brackets
Examples: 'left3down2' -> 'left[3]down[2]' 'fiat500' -> 'fiat[500]'
9 years ago
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Skip empty cell entries
From {'a';'b';[];'c'} return {'a';'b';'c'} using a oneliner.
9 years ago
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Explode string
Convert a sentense into a cell of strings (i.e. use space as delimiter).
9 years ago
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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.
9 years ago
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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
9 years ago