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Chad Gilbert


Active since 2012

M&S; Systems Engineering
Professional Interests: Modelling and Simulation; Naval warfare; Marine Ecology; Nerve Physiology

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Solved


Circle area using pi
Given a circle's radius, compute the circle's area. Use the built-in mathematical constant pi.

meer dan 8 jaar ago

Solved


Vectorizing, too easy or too hard?
Please insert a . before any ^, * or / in the string. That's it!!

ongeveer 9 jaar ago

Solved


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

ongeveer 9 jaar ago

Solved


Find Index of maximum Value and maximum Value of a vector
Find the Index of the first occurrence of the maximum value in a vector and also the maximum value in the vector. Example: [...

ongeveer 9 jaar ago

Solved


Convert a numerical matrix into a cell array of strings
Given a numerical matrix, output a *cell array of string*. For example: if input = 1:3 output is {'1','2','3'} whic...

ongeveer 9 jaar ago

Solved


Is it a number?
Determine if input is numeric. If it is,output is 1; if it is not, output is 0.

ongeveer 9 jaar ago

Solved


only input
Return the output without writing any code into the function.

ongeveer 9 jaar ago

Solved


Is it an Armstrong number?
An Armstrong number of three digits is an integer such that the sum of the cubes of its digits is equal to the number itself. Fo...

ongeveer 9 jaar ago

Solved


Magic is simple (for beginners)
Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

ongeveer 9 jaar ago

Solved


Alternating sum
Given vector x, calculate the alternating sum y = x(1) - x(2) + x(3) - x(4) + ...

ongeveer 9 jaar ago

Solved


Return area of square
Side of square=input=a Area=output=b

ongeveer 9 jaar ago

Solved


Is the Point in a Circle?
Check whether a point or multiple points is/are in a circle centered at point (x0, y0) with radius r. Points = [x, y]; c...

ongeveer 9 jaar ago

Solved


Sophie Germain prime
In number theory, a prime number p is a *Sophie Germain prime* if 2p + 1 is also prime. For example, 23 is a Sophie Germain prim...

ongeveer 9 jaar ago

Solved


does it touch ?
given a sentence, tell how much it touches. input : string output : how much it touches touching : a bilabial phoneme d...

ongeveer 9 jaar ago

Solved


Try 1.5.4: Celsius to Fahrenheit
Write a program to convert an input given in Celsius to Fahrenheit. Examples: Input celsiusValue = 100 Output fahrValu...

ongeveer 9 jaar ago

Solved


Set defaults
Write a function that computes the volume of a cube. The function should be able to accept three inputs: the length, width, and...

ongeveer 9 jaar ago

Solved


System of equations
Find a solution to a system of equations represented by a |n| by |n+1| matrix. For instance, [ 2 0 4; => 2*x = 4 ...

ongeveer 9 jaar ago

Solved


Equal to their cube
Tell me three real numbers that are equal to their cubes?

ongeveer 9 jaar ago

Solved


Remove the two elements next to NaN value
The aim is to *remove the two elements next to NaN values* inside a vector. For example: x = [6 10 5 8 9 NaN 23 9 7 3 21 ...

ongeveer 9 jaar ago

Solved


Are you in or are you out?
Given vertices specified by the vectors xv and yv, and a single point specified by the numbers X and Y, return "true" if the poi...

ongeveer 9 jaar ago

Solved


Find the nearest integer
Given a vector of integers and a real number find the closest integer. EX: >> a = [2 4 5 6 8 10]; >> b = 4.6; >> nea...

ongeveer 9 jaar ago

Solved


Fahrenheit to Celsius converter
Convert Fahrenheit to Celsius degrees.

ongeveer 9 jaar ago

Solved


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 =...

ongeveer 9 jaar ago

Solved


Column norms of a matrix
Given a matrix M, return a vector y such that for each k y(k)=norm(M(:,k)) (y(k) is the Euclidean norm of the k-th col...

ongeveer 9 jaar ago

Solved


letter yes yes & letter no no
Split a string into two strings, first string has all alphabetic letters, next string has all the rest, keep the order please, o...

ongeveer 9 jaar ago

Solved


Find number of days
The input is two date in string format (dd-mm-yyyy) find out the number of days between these two dates. Example: input: ...

ongeveer 9 jaar ago

Solved


Twins in a Window
<http://en.wikipedia.org/wiki/Twin_primes Twin primes> are prime numbers that differ by 2, such as [11,13] or [41,43]. Write a f...

ongeveer 9 jaar ago

Solved


7 segment LED display
Given a whole number, output how many segments would be lit up to display it on a 7 segment LED display (http://en.wikipedia.org...

ongeveer 9 jaar ago

Solved


Will there be a new leader?
Simply answer the title.

ongeveer 9 jaar ago

Solved


Generate a random matrix A of (1,-1)
Input n: is an positive integer which serves as the dimension of the matrix A; Output: A=(Aij),where each entry Aij is either...

ongeveer 9 jaar ago

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