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Missing five
Convert decimal numbers to a base-9 notation missing the digit *5* <<http://www.alfnie.com/software/missing5.jpg>> Too man...

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Find the nearest prime number
Happy 5th birthday, Cody! Since 5 is a prime number, let's have some fun looking for other prime numbers. Given a positive in...

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Extra safe primes
Did you know that the number 5 is the first safe prime? A safe prime is a prime number that can be expressed as 2p+1, where p is...

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Energy of a photon
Given the frequency F of a photon in giga hertz. Find energy E of this photon in giga electron volts. Assume h, Planck's ...

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How to subtract?
* Imagine you need to subtract a few numbers using MATLAB. * You will not be using eval for this task. * Given two ASCII strin...

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Elapsed Time
Given two date strings d1 and d2 of the form yyyy/mm/dd HH:MM:SS (assume hours HH is in 24 hour mode), determine how much time, ...

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Balanced number
Given a positive integer find whether it is a balanced number. For a balanced number the sum of first half of digits is equal to...

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Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

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Mandelbrot Numbers
The <http://en.wikipedia.org/wiki/Mandelbrot_set Mandelbrot Set> is built around a simple iterative equation. z(1) = c z...

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Find the peak 3n+1 sequence value
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

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How Many Months Until It's Today Again?
Given a particular date, calculate how many months must pass before that same day of the month occurs on the same day of the wee...

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"Low : High - Low : High - Turn around " -- Create a subindices vector
Let two vectors *lo* and *hi* be given. The job is to create a index vector like so idx = [lo(1):hi(1) lo(2):hi(2) ...]...

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matlab indian players
answer is one of the indian matlab player(just for fun dont take serious)

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Matlab Basics - y as a function of x
write a script to calculate y as a function of x, such that y = 6x^2 + 5x - 2

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Adding an element: Ticker tape
* Add stockPrice to the beginning of row array tickerTape

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Matlab Basics - Logical Tests I
Write a script to test whether a year number is for a leap year or not. eg. x = 1884 output = 1 eg. x = 3 output = 0

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Is my wife right?
Regardless of input, output the string 'yes'.

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Is My Wife Wrong?
Answer the question. (see also <http://www.mathworks.com/matlabcentral/cody/problems/149-is-my-wife-right Problem 149: Is my ...

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Let's see how peculiar we can get
The task is to multiply two numbers. But do it in the most peculiar possible way.

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Luggage delivery
Assign deliveryCost with the cost to deliver a piece of baggage weighing baggageWeight. The service charges twenty dollars for ...

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Modify an array's elements
Write a for loop that iterates from 1 to numberSamples to double any element's value in dataSamples that is less than minValue. ...

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Next Higher Power of B
|Given a number _n_ and a base _B_ greater than 1, return the lowest integer power of _B_ that is greater than or equal to _n_. ...

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Bit Reversal
Given an unsigned integer _x_, convert it to binary with _n_ bits, reverse the order of the bits, and convert it back to an inte...

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Colon operator of two vectors
You are given two vectors of equal length: VecStart, VecEnd Each vector contain a set of integers, where VecEnd(j)>=VecStar...

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Do Fast Fourier Transformation
Example Fast Fourier Transformation from vector [2,1]) ans = 3 1

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CONVERT TAN TO SIN
In a right angle triangle ABC given the tan(A) then find sin(A) For example tan(A)=3/4 then sin(A)=3/5

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Area of a disk
Find the area of a disk or circle. x= radius of the disk.

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factorial of a number x
Factorial of a number x

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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.

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frame of the matrix
Given the matrix M, return M without the external frame.

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