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Highly divisible triangular number (inspired by Project Euler 12)
Triangular numbers can be calculated by the sum from 1 to n. For example, the first 10 triangular numbers are: 1, 3, 6, 10, ...

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Rule of mixtures (composites) - lower and upper bounds (volumes)
The <http://en.wikipedia.org/wiki/Rule_of_mixtures rule of mixtures> is used in the mechanical design of composite structures to...

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Rule of mixtures (composites) - either bound
The <http://en.wikipedia.org/wiki/Rule_of_mixtures rule of mixtures> is used in the mechanical design of composite structures to...

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Rule of mixtures (composites) - lower and upper bounds
The <http://en.wikipedia.org/wiki/Rule_of_mixtures rule of mixtures> is used in the mechanical design of composite structures to...

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Rule of mixtures (composites) - lower bound
The <http://en.wikipedia.org/wiki/Rule_of_mixtures rule of mixtures> is used in the mechanical design of composite structures to...

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Rule of mixtures (composites) - upper bound
The <http://en.wikipedia.org/wiki/Rule_of_mixtures rule of mixtures> is used in the mechanical design of composite structures to...

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Guess
A random number between 1 and 10 is created for the variable y. Guess what its value is.

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modular arithmetic
Given three integers a,b and c, find the remainder when a^b is divided by c. Here, a^b will be well beyond the largest 64 bit in...

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Digital Neighbourhood
Given a natural number reorder its digits to create another number, closest to the given one. Examples: * 123 gives 132, ...

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Form Blocks in a 1D array
Lets say I have an array of size (10,1); I want to divide it into the num number of blocks which are given by user no_of_b...

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Esoteric Trigonometry
From Wikipedia: "All of the trigonometric functions of an angle θ can be constructed geometrically in terms of a unit circle cen...

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Average speed for the entire trip
The input is two speeds (for the trip and return trip) and output is average speed. Assume units are consistent, say miles per h...

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Find out Binomial coefficient
Find out the <http://en.wikipedia.org/wiki/Binomial_coefficient Binomial coefficient>. There is a function available in MATL...

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Gamma Function
Evaluate the <http://en.wikipedia.org/wiki/Gamma_function/ Gamma Function>. Gamma_val(0) = Inf Gamma_val(1.2) = 0.9182

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Find the rank of a matrix
Determine the rank of a matrix without using the MATLAB function of the same name.

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What's for Lunch?
Given b choices of beverages, e choices of entrees, s choices of sides (take two different sides total) and d choices of dessert...

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Approximation of Pi (vector inputs)
Pi (divided by 4) can be approximated by the following infinite series: pi/4 = 1 - 1/3 + 1/5 - 1/7 + ... For a given numbe...

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Matlab Basics II - Find the roots of a function
Write a function that finds where a curve crosses zero (the x-axis) to two decimal places Example: <<http://s14.postimg.o...

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Days until next NewYear ball drop
Given a date string in the form 'yyyy-mm-dd' or 'yyyy-mm-dd hh:mm:ss', calculate the number of *days* until the dropping of the ...

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Combination logic
Create an algorithm in MATLAB that calculate the combination for the given positive integers n and k as inputs. When k > n, the ...

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square a vector-Given the variable x as your input, square it and put the result in y.
function y = (x)squared y = x; end

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Expression or variable?
Test if arguments of the function are all variables (workspace variables names). Return 1 if yes, 0 if no. For example : ...

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Baseball Pitch Question
One pitcher made 10 practice pitches during his warm up before the game. Using the given information, create a vector matrix an...

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Rotate counterclockwise a matrix 90 deg with left-bottom element
Example: Input [ 1 2 3 4 5 6 ] Output [ 3 6 2 5 1 4 ]

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Volume of Cylinder
Compute the Circumference of a Cylinder given it's radius and height.Here x is the radius and y is the height

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Normalize by maximum
Subtract the maximum value in a column from the corresponding columns of a matrix.

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The Python Challenge, Level 1: Decode strings
This problem is based on <http://www.pythonchallenge.com/pc/def/map.html Level 1 of The Python Challenge>, which is just a serie...

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Dice roll - lateral faces
For this problem, you will be provided with the values of a dice roll (regular six-sided dice). The number of dice will be at le...

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Hexagonal numbers on a spiral matrix
Put hexagonal numbers in a ( m x m ) spiral matrix and return the sum of its diagonal elements. Formula of hexagonal numbers ...

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combine cells
A cell type variable is created. However it has other cells in itself. we want to integrate them all in a single cell. the conte...

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