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Champernowne Constant

The <http://en.wikipedia.org/wiki/Champernowne_constant Champernowne constant> is a real number whose digits in decimal represen...

mer än 7 år ago

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Pascal's Matrix

Given an integer n ≥ 0, generate the ( _n_+1) × ( _n_+1) lower triangular <http://en.wikipedia.org/wiki/Pascal_matrix P...

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Net Present Value of a Stream of Cash Flows

Calculate <https://en.wikipedia.org/wiki/Present_value the net present value of a future cash flow> vector given; * future ca...

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Convert Two Character String into a Binary Vector

Given a string "XOXXO" convert it into a binary vector. [1 0 1 1 0] Paul Berglund implemented an optimal method in <http://ww...

mer än 7 år ago

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Is it a number?

Determine if input is numeric. If it is,output is 1; if it is not, output is 0.

mer än 7 år ago

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Beads on a Necklace (Convex Hulls)

We may describe a <http://en.wikipedia.org/wiki/Convex_hull convex hull> as a rubber band stretched around a list of points. Som...

mer än 7 år ago

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Determine value using Look-up table method

Given a set of 2 vectors x and y related in a certain way, you are supposed to find value of y (ydash) given a particular value ...

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Number of vertices of a hypercube

Return the number of vertices of a n-dimensional hypercube.

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Calculate compression ratio of engine

Calculate compression ratio of engine given compression volume of cylinder(Vc), piston stroke(s) and valve diameter(d)

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Edges of a n-dimensional Hypercube

Return the number of edges on an <http://en.wikipedia.org/wiki/Hypercube _n_-dimensional hypercube> (with an integer n ≥ 0). ...

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Convolution Power

Create the convolution-power vector from initial vector _x_ and power _n_. In other words, similar to the scalar case, raising ...

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Volume of a Simplex

Return the volume of a <http://en.wikipedia.org/wiki/Simplex regular _n_-simplex> with a unit side length. Results are up to...

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Create an n-by-n null matrix and fill with ones certain positions

The positions will be indicated by a z-by-2 matrix. Each row in this z-by-2 matrix will have the row and column in which a 1 has...

mer än 7 år ago

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blind channel estimation

matlab code for blind channel estimation in DS-CDMA systems with unknown wide sense stationary interference.

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sinus function

x is the abscissa. find the absolute value of cosine of -x and the same value with changed sign.

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wide sense stationary matlab

matlab code for wide sense stationary interference

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subtract central cross

Given an n-by-n square matrix, where n is an odd number, return the matrix without the central row and the central column.

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Smallest distance between a point and a rectangle

Given two points *x* and *y* placed at opposite corners of a rectangle, find the minimal euclidean distance between another poin...

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give-nth-decimal-place-of-pi up to 100 digits

max 100th place after the decimal point this is upgrade problem of 142

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Continued fractions

Find a <http://en.wikipedia.org/wiki/Continued_fraction continued fraction> approximation of x.

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Generate a NaN...on purpose

The goal is to create a function that will return a single "NaN" without using the nan function. I am interested to see how many...

mer än 7 år ago

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Implement a bubble sort technique and output the number of swaps required

A bubble sort technique compares adjacent items and swaps them if they are in the wrong order. This is done recursively until al...

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Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)

Given a number _n_, return the terminal value of the number chain formed by summing the square of the digits. According to the P...

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Who invented zero?

We know the importance zero in computer science, mathematics... but who invented zero? Clue: He was the first in the line ...

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A (wrong) place for everything, and everything in its (wrong) place

You have an equal number of cups and balls, each labelled from one to N. You randomly place one ball in each cup. Determine th...

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Numbered lottery balls into cells

You are running a lottery, and have a number of different balls numbered 1 to N. Your job is to figure out how many different w...

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Perimeter

Given a sequence of points forming a closed path (first and last points are coincident) return the perimeter value. For example...

mer än 7 år ago