Mark Posen

RPC Telecommunications Ltd.

Last seen: circa un mese fa | Attivo dal 2020

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I am a satellite communication engineer, specialising in spectrum and regulatory engineering, interference analysis and frequency coordination. I have been programming since the mid-1970s (I used to be able to code by hand-punching Hollerith Cards!) but for the past 20-years or so I have really not done much coding at all. I'm trying to remedy that by learning MATLAB!

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Air Mass to Star for an Observer at Mean Sea Level
Air mass is a measure of how much atmosphere light from a source above the atmosphere (eg sun, planet, star) has to travel throu...

circa un anno fa

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Find Air Temperature from Cricket Stridulation Rate
Stridulation is the process that creates a cricket's “chirp” by rubbing their wings or legs. According to the Old Farmer's Alma...

circa un anno fa

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Volume of Cylindrical Shell

oltre un anno fa

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Double the next!
Given two numbers, m and n, find a matrix m x n where each element value is twice the value of the previous element. Starting fr...

quasi 2 anni fa

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An n-sided regular polygon is drawn within a circle whose radius is 'r', what will be the area of the polygon?
area of a polygon is p*a/2. where, p is the perimeter and a is the apothem i.e. the normal distance from center to any of the si...

circa 2 anni fa

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Find the two most distant points
Given a collection of points, return the indices of the rows that contain the two points most distant from one another. The inpu...

circa 2 anni fa

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Narcissistic problem
How many likes has this problem?

circa 2 anni fa

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Backgammon #4 - Dice Probabilities
Previous problems in this series have looked at how a backgammon board might be represented, and board positions manipulated and...

circa 2 anni fa

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Total resistance of a network of resistors in series and parallel
What is the total resistance of a network of resistors in series and in parallel? A matrix R contains the resistances (in Ohm) ...

circa 2 anni fa

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Total resistance of resistors in parallel
What is the total resistance of a number of resistors in parallel? A vector R contains the resistances (in Ohm) of n resistors,...

circa 2 anni fa

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Total resistance of resistors in series
What is the total resistance of a number of resistors in series? A vector R contains the resistances (in Ohm) of n resistors, w...

circa 2 anni fa

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Delete x value in given vector y.
Delete x value in given vector y. Exapmle x=5; y=[ 1 2 5 6 74 5 2 5] result=[1 2 6 74 2]

circa 2 anni fa

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For a rectangle, if x is the length and 2x is width. Then find out x from the area of the rectangle?
For a rectangle, if x is the length and 2x is the width. Then find out x from the area of the rectangle? if the area is equal...

circa 2 anni fa

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Create sine function out of cosine
Please don't use sin(x) directly

circa 2 anni fa

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Create tangent function out of cosine only
Please don't use tangent and sine functions

circa 2 anni fa

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Create cosine function out of sine
Please dont use cos(x) directly

circa 2 anni fa

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Create tangent function out of sine function only
Please don't use cosine and tangent functions

circa 2 anni fa

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Create tangent function out of sin and cos
Please don't use tan(x) directly

circa 2 anni fa

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Convert decimal to binary and then generate the minimum binary it can with jumbling
input is 10 --> 1010 output should be 3 --> 0011 input 23 --> 10111 output should be 15 --> 01111

circa 2 anni fa

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Generate a matrix as follows
write a Function that gives like the following for a random n: n=2 ans= [ 0 1 1 0] n=6 ans= [ 0 ...

circa 2 anni fa

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Arrow!!
Write a script that gives (( follow the example)) if x=4 & output= 1 1 1 1 1 1 0 1 1...

circa 2 anni fa

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STOP that car!!!
The maximum allowed speed for this road is 100. Find the cars that didn't observe the speed limit Arrest and fine them!!!

circa 2 anni fa

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Finding two missing number in 1 to n array
You are given an array of numbers from 1 to n with two missing numbers. Return the two missing numbers. Input: x=[5 2 0 1 ...

circa 2 anni fa

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Get the n-th rand number with given seed
Given seed s, return the n-th rand number using rand(). Round the answer with 4 digits. n is a postive integer.

circa 2 anni fa

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Consecutive Powers
Return 2 numbers and 2 powers such that their difference is 1 A 4 element row vector is expected: x where x(1)^x(2) - x(...

circa 2 anni fa

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Throw common elements of two vector arrays
Throw common elements as output of two given input vector arrays

circa 2 anni fa

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Throw common elements of two vector arrays in sorted manner
Throw common elements as output in sorted manner (acending order) of two given input vector arrays

circa 2 anni fa

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Determine the roots of a cubic equation
Given the coefficients a, b, c, and d of a cubic equation, a*x^3 + b*x^2 + c*x + d = 0, determine its roots.

circa 2 anni fa

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Roots of a quadratic equation.
Calculate the roots of a quadratic equation, given coefficients a, b, and c, for the equation a*x^2 + b*x + c = 0.

circa 2 anni fa

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Nth root
Nth root of a number x

circa 2 anni fa

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Mark Posen

RPC Telecommunications Ltd.

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