Total resistance of resistors in parallel
What is the total resistance of a number of resistors in parallel?
A vector R contains the resistances (in Ohm) of n resistors,...
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Total resistance of resistors in series
What is the total resistance of a number of resistors in series?
A vector R contains the resistances (in Ohm) of n resistors, w...
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Guess the Coefficients!
Given a polynomial _p_ known to have positive integer coefficients, deduce the values of the coefficients.
For example:
...
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Summing Rows and Columns
Create a matrix y of size (n+1) whose last column's elements are the summation of the elements of all the other columns and last...
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Draw 'P' !!!
Draw a n by n matrix 'P' using 0s and 1s. (n is odd and greater than 4)
if n=5 , then the output will be
[1 1 1 1 1
1 0 0 0...
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Find a Prime Number
Find a prime number from a vector
Example:
[2 51 8 65 19]
a = 51
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A sequence of Ones
You are given number(s) with all digits - 1.
Your answer will depend on the count of 1 in the given number, for example -
x1...
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Flip the diagonal values
Write a program that flip the elements of main diagonal , upper and lower diagonal values of a sqare matrix.
For example if a ...
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Mann-Kendall Correlation
Write a function that returns the <http://en.wikipedia.org/wiki/Kendall_tau_rank_correlation_coefficient Mann-Kendall> correlati...
remove numbers from a string
check the given string for any numbers.in case one is found,remove it.but the two portions should be separated. if more than one...
Find the missing numbers.
Total *N* numbers are in the series of natural numbers ( *1,2,3,...,N* ).
The input is an array (unsorted) of those natural num...
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The other half of the Fibonacci sequence
The <http://mathworld.wolfram.com/FibonacciNumber.html "Fibonacci sequence"> —
F = [1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144,...
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The twelve days of Christmas
Traditionally there are twelve days of Christmas to celebrate ("Twelvetide"), typically starting with Christmas Day (25 December...
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short or buy ? take the opportunity
you had already calculated a theoretical stock value, now you checked in bloomberg the quoted price of that stock and you have t...
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Counting Squares
An algorithm starts with a single square and on each of its next iterations adds new squares all around the outside as shown bel...