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Generate pi using logarithm
Generate pi using logarithm

casi 12 años hace

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Are you in or are you out?
Given vertices specified by the vectors xv and yv, and a single point specified by the numbers X and Y, return "true" if the poi...

casi 12 años hace

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Square wave average calculation
Given its peak and duty cycle, calculate avg value of square wave

casi 12 años hace

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Calculate the nth Fibonacci number USING 'Golden Ratio' concept
f = [1 1 2 3 5 8 13 ...] If n=6, f(6)=8

casi 12 años hace

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Given a number find two variables
If the input is *x*, find *a* and *b* from the following equation: *x = a*2^b*. Hint: *b* is an integer while *x* and *a* ar...

casi 12 años hace

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R2012b atan in Degrees
Return in degrees the atan result of inputs for all four quadrants. *Examples:* [x, y] Degrees 1 0 0 1 1 ...

casi 12 años hace

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Calculate the peak value of square wave
Given the peak value of sine wave, calculate corresponding peak value of square wave, if both have same RMS voltage.

casi 12 años hace

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Make a Plot with Functions
Make a plot and test

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Calculate the integral of the polynomial
for e.g. in = [3 2 1] out = [1 1 1 0]

casi 12 años hace

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Remove element(s) from cell array
You can easily remove an element (or a column in any dimension) from a normal matrix, but assigning that value (or range) empty....

casi 12 años hace

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Fibonacci-Sum of Squares
Given the Fibonacci sequence defined by the following recursive relation, * F_n = F_(n-1) + F_(n-2) * where F_0 = 0 and F_1 ...

casi 12 años hace

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cos for boss?
a programmer had too much coffee and his boss needs cos(alpha+beta) correctly, especially when alpha or beta or the coffee are c...

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Find the maximum two numbers of every column of a matrix
Find the maximum two numbers of every column of a matrix. Example: If we input a matrix A = [ 1 2 4 6 0 3 ...

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Polynomial division
Divide a polynomial u by polynomial v and return the quotients only. Example: u = x^4+3*x^3+5*x+3 v = x^2+1 Answer: ...

casi 12 años hace

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Average of square wave
given positive and negative peak , calculate dc level, 50% duty cycle

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Negation the hard way
Write a function that has the following property: f(f(x)) = -x for any numeric array x. Note that there is no restriction on ...

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calculate RMS voltage
given peak to peak voltage, calculate rms voltage

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Convert Two Character String into a Binary Vector
Given a string "XOXXO" convert it into a binary vector. [1 0 1 1 0] Paul Berglund implemented an optimal method in <http://ww...

casi 12 años hace

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Signed Magnitude
For a given input vector, return the value that is furthest from zero. For example, if x = [1 2 -12] return -12.

casi 12 años hace

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Sum the 'edge' values of a matrix
Sum the 'edge' values of an input matrix (the values along the perimeter). Example [1 2 3 4 5 6 7 8 9] Output = ...

casi 12 años hace

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Sunday bonus
Submit a solution on any Sunday and you will get 10 points. Only for MATLAB fans!

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Pluralization
Define function plu(n) that returns '' (an empty string) if n=1, or 's' otherwise. This is handy for displaying messages from a...

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NO _________ ALLOWED....
So you're given a sentence where if there is a particular word in the sentence then the output is 1, if it is not there then the...

casi 12 años hace

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Calculate the derivative of a polynomial
Example: in = [ 1 1 1 ] out = [ 2 1 ]

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Volume of a sphere given its surface area
You just measured its surface area, that is the input.

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Add a row of zeros on top of a matrix
Given a matrix, insert a row of zeros as the top row.

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Penny flipping - calculate winning probability (easy)
Two players are playing a fair penny flipping game. For each flip, the winner adds one penny from the loser's collection to his/...

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sinus function
x is the abscissa. find the absolute value of cosine of -x and the same value with changed sign.

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Find the logic
There exists one logic in between input and output. Find it (easy math). Example 1: x=13 then y=339; Example 2: x=26...

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Switch matrix to a column vector
for e.g. x = [1 2 3 4] y = 1 3 2 4

casi 12 años hace