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Compute the Sequence of the Day
A sequence starts with 1 and 2, and each subsequent term is the sum of the digits of the product of the previous two terms. As a...

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Solve a nonlinear difference equation

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SatCom #7: Thermal Noise in a Receiver

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Easy Sequences 4: Eliminate the Days of Confusion
If a date is written in purely numeric format some dates can be confusing, if we don't know the date format used. For example, "...

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Easy Sequences 3: Prime 44-number Squares
The positive integers 62 and 238 are related. Their squares (3844 and 56,644) both end in '44'. In fact, 62 and 238 are the 3rd ...

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Broken numlock key, oppps !
The numlock key on my computer is pressed and is now broken, so I cant press it to switch off the numlock mode. And hence I am n...

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Pancake sorting
Sort a stack of pancakes by flipping them using spatula. * There are _N_ pancakes with diameters _1:N_. * Spatula can be ins...

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How to reverse spdiags?
The spdiags function extracts all nonzero diagonals from the m-by-n matrix A. So if A=[1 2 3;4 5 6;7 8 9], spdiags(A)=[7 4...

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Fangs of a vampire number
A vampire number is a number v that is the product of two numbers x and y such that the following conditions are satisfied: at ...

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Project Euler: Problem 9, Pythagorean numbers
A Pythagorean triplet is a set of three natural numbers, a b c, for which, a^2 + b^2 = c^2 For example, 3^2 + 4^2 = 9 + 16 ...

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Mathematical formula
Find the value of the expression given the values of variables t and k. Assume g=9.81

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Find all prime factors of the input
Given an input x, find its all prime factors. Return the vector with all factors in ascending order. Efficiency is the key here...

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Find the remainder - 02
Given an array of integers, find the remainder when the summation of all the elements is divided by N

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Momentum Calculation
A shopping cart of mass 'm1' is traveling with velocity 'u' and collides with a second shopping cart of mass 'm2.' The two shopp...

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Sequence
Let S be a sequence of numbers Let Find for some , where and . Update - test suite cleaned up on 2-9-22

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Sum of Arithmetic Progression
Given the starting number, difference and the number of terms - find the sum of the arithmetic progression.

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Dominant Matrix - 01
A matrix is said to be diagonally dominant if for every row of the matrix, the magnitude of the diagonal entry in a row is large...

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Find the jerk
No, it's not the author of this problem... Jerk is the rate of change in acceleration over time of an object. So, if given t...

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SatCom #8: Satellite Link Budget
Satellite and Space Engineering - Problem #8 This is part of a series of problems looking at topics in satellite and space comm...

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SatCom #6: Inclination of a Sun-Synchronous Orbit
Satellite and Space Engineering - Problem #5 This is part of a series of problems looking at topics in satellite and space comm...

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SatCom #5: Determine Elliptical Orbit Parameters
*Satellite and Space Engineering - Problem #5* _This is part of a series of problems looking at topics in satellite and space...

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SatCom #2: Gain of a circular 'dish' antenna
Satellite and Space Engineering - Problem #2 This is part of a series of problems looking at topics in satellite and space comm...

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Valid Chess Moves
Using standard Algebraic notation ('' for a pawn), given previous move and a next move, output true if it is a valid move or fal...

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Is this is a Tic Tac Toe X Win?
For the game of Tic Tac Toe we will be storing the state of the game in a matrix M. For this game: We would store the state ...

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Count the peaceful queens
In a 5x5 chessboard with a queen of one color (white, say) on the perimeter, one can place 12 black queens on the board such tha...

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Find the slope of a line that passes through two vectors
Given two vectors p1 and p2, return the slope of a line that passes through p1 and p2. Examples: Input [p1,p2] = deal([0,1],[...

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Easy Sequences 2: Trigonometric function with integral input and output
The function 'F', defined as: , will always return an integer if the input is a natural number (in radian...

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weekday and month
Given a year and a weekday, determine how many months of that year had five of those weekdays. It is kind of easy to find. Exam...

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Swap Characters of a Single Word
Description: In the given input word, convert the lower case to upper case and vice versa. A to a, a to A ... Example: 'Matl...

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Remove Lower Case Letters
Example MEMOry --> MEMO IMPlEMeNtATiON --> IMPEMNATON

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