Rule 30 is considered to be chaotic enough to generate good pseudo-random numbers. As a matter of fact, rule 30 is used by the Mathematica software fo
Continue ReadingC++: Apply a Callback to an Array
In this task, the goal is to take a combined set of elements and apply a function to each element. C-style Array: #include <iostream> //
Continue ReadingC++: Higher-Order Functions
Pass a function as an argument to another function. Function Pointer Works with: g++ version 3.4.2 (mingw-special) C++ can pass function pointers i
Continue ReadingC++: Look-and-Say Sequence
The Look and say sequence is a recursively defined sequence of numbers studied most notably by John Conway. Sequence Definition Take a decimal
Continue ReadingC++: Hamming Numbers
Hamming numbers are numbers of the form . Hamming numbers are also known as ugly numbers and also 5-smooth numbers (numbers whose prime div
Continue ReadingC++: Simple Moving Average
Computing the simple moving average of a series of numbers. The task is to: Create a stateful function/class/instance that takes a period and
Continue ReadingC++: Multifactorial
The factorial of a number, written as n! is defined as n! = n(n − 1)(n − 2)...(2)(1) A generalization of this is the multifactorials where:
Continue ReadingWhy Is Char[] Preferred Over String for Passwords?
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In Swing, the password field has a getPassword() (returns char[]) method instead of the usual getText() (returns String) method. Similarly, I have com
Continue ReadingC++: GUI Component Interaction
Almost every application needs to communicate with the user in some way. Therefore, a substantial part of the code deals with the interaction of progr
Continue ReadingC++: Root Mean Square
Compute the Root mean square of the numbers 1..10. The root mean square is also known by its initial RMS (or rms), and as the quadratic mean. Th
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