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ChrisR


Last seen: 1 jour il y a Actif depuis 2015

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I teach courses in water resources and environmental fluid mechanics.

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A résolu


Not yet geometry(equilateral triangle)
Type the formula of the area(A) of an equilateral triangle with a side of a. Tip: As a string.

10 jours il y a

A résolu


Gometry time2!(easy to medium)
Given the same circle as ''Geometry time!'' below you are now requested to to find the length of the section OAB(L). However the...

10 jours il y a

A résolu


Not yet geometry(triangles)
Write the formula of the area of a triangle(A) that has a height of h and a base of b. Tip: Write the formula as a string.

10 jours il y a

A résolu


Gear ratio of a gear pair
Let's assume that we have a pair of two gears(pinion-bigger gear). The goal is to calculate the gear ratio(i) given the number (...

10 jours il y a

A résolu


Not yet geometry(square, rectangle and trapezium)
Type the formula of the area of a square(Asq) of side(a), a rectangle(Arec) of length(l) and width(w) and of a trapezium(Atr) of...

10 jours il y a

A résolu


Not yet geometry(Circles)
Type the formula of the area(Ac) of a circle with radius r and a sector of a circle(As) with radius r and angle theta in rads. ...

10 jours il y a

A résolu


Almost done with the "tutorial"(Perimeter of a circle)
Find the perimeter of a circle(P) if radius r is given.

10 jours il y a

A résolu


Swap the column given with another one!
We have a random sized matrix A. You have to change the nth column with the kth column. The result must be a matrix B. For exam...

10 jours il y a

A résolu


Geometry time!(easy)
Suppose that we have a square and its Area is given. Then we have the following circle (with center O) which has the same radius...

10 jours il y a

A résolu


Test your geometry knowledge!(simple)
We have the following shape and you need to: 1) Find the area of the triangle ABE(A_tr). (Suppose that the angle E is 90 degree...

10 jours il y a

A résolu


Calculate the Compression of a Spring
A mechanical engineer wants to determine how much a spring will compress when a force is applied to it. According to Hooke’s Law...

18 jours il y a

A résolu


Radar Target Distance Calculation
A radar system sends a short electromagnetic pulse toward a target and measures the elapsed time between transmission and recept...

environ un mois il y a

A résolu


Reverse the Sign
Write a function that returns the input with the sign of every element reversed. The input may be a scalar, vector, or matrix. ...

environ un mois il y a

A résolu


Column Vector
The third problem in Linear Algebra group. Create a column vector like this:

environ un mois il y a

A résolu


Row Vector
The second problem in Linear Algebra group. Create this vector in MATLAB: [7 8 26]

environ un mois il y a

A résolu


Scalar
The First problem in Linear Algebra group. Make scalar contains the value:

environ un mois il y a

A résolu


Matrix
The fourth problem in Linear Algebra group. Create a matrix like this: 14 7 26 7 8 6 3 0 30

environ un mois il y a

A résolu


Sum of Elements Above the Main Diagonal of a Square Matrix
Given a square matrix as input, write a function that returns the sum of all elements above the main diagonal. If the input mat...

environ 2 mois il y a

A résolu


Show me the shape of your array
Write a function that determines the shape of the input array x: Return 'square' if x has the same number of rows and colum...

environ 2 mois il y a

A résolu


Caesar Cipher: shift a lowercase string
A Caesar cipher shifts every letter forward through the alphabet by a fixed amount, wrapping around from z back to a. Given a...

environ 2 mois il y a

A résolu


Is the Matrix Square?
Write a function that determines whether the input matrix x is square. Return true if x has the same number of rows and columns...

environ 2 mois il y a

A résolu


Sum of proper divisors (aliquot sum)
A proper divisor of a positive integer n is any divisor of n except n itself. The aliquot sum is the sum of all proper divisors....

2 mois il y a

A résolu


Play the Disk
To access the memory address of program on disk, MS-DOS uses sectors,cylinders and heads, on disk in 3D coordinates. Given the h...

2 mois il y a

Problème


Compute the reduced totient
The totient function counts numbers less than n that are relatively prime to n. The reduced totient function, or Carmichael lamb...

2 mois il y a | 0 | 6 solveurs

A résolu


A KING AND 100 PRISONERS

2 mois il y a

A résolu


Calculate the h-index (revisited)
H-index is a powerful tool for quantifying the scientific contribution of a researcher. The H-index is defined as follows (fro...

2 mois il y a

Problème


Count divisors of n!
The factorial of 5, or 5! = 120, has 16 divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, and 120. How many does n!...

2 mois il y a | 1 | 7 solveurs

A résolu


Title
Make a plot for x and add title "My Plot". NOTICE: YOU CAN NOT USE ans INSTEAD OF [y ax]!

3 mois il y a

A résolu


Plot
Make a plot of the vector x. NOTICE: YOU CAN NOT USE ans INSTEAD OF y!

3 mois il y a

A résolu


MATLAB 101: List Manipulation: Add and Remove
Create a MATLAB function that performs dynamic list operations on a cell array of strings. The function should accept the curren...

3 mois il y a

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