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Generate pi using logarithm
Generate pi using logarithm

quasi 12 anni fa

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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...

quasi 12 anni fa

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

quasi 12 anni fa

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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

quasi 12 anni fa

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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...

circa 12 anni fa

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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 ...

circa 12 anni fa

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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.

circa 12 anni fa

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Make a Plot with Functions
Make a plot and test

circa 12 anni fa

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

circa 12 anni fa

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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....

circa 12 anni fa

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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 ...

circa 12 anni fa

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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...

circa 12 anni fa

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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 ...

circa 12 anni fa

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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: ...

circa 12 anni fa

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

circa 12 anni fa

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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 ...

circa 12 anni fa

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

circa 12 anni fa

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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...

circa 12 anni fa

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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.

circa 12 anni fa

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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 = ...

circa 12 anni fa

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

circa 12 anni fa

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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...

circa 12 anni fa

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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...

circa 12 anni fa

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

circa 12 anni fa

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

circa 12 anni fa

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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.

circa 12 anni fa

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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/...

circa 12 anni fa

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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.

circa 12 anni fa

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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...

circa 12 anni fa

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

circa 12 anni fa