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**Content Feed**

Solved

Vector push

Append an element |x| to the end of the vector |v| and return both the extended vector and the new number of its elements. |x| c...

3 mesi ago

Solved

Sum of Two Numbers

Given two integer numbers x and y, calculate their sum and put it in z. Examples: Inputs x = 2, y = 4 Output z is 6 ...

4 mesi ago

Solved

letter yes yes & letter no no

Split a string into two strings, wherein the first string has all alphabetic letters and the second string has all the remaining...

oltre un anno ago

Solved

Rearrange the given matrix to have all its zeros climb up to the top of each column - using for loops.

Given a matrix x, *using loops only* return a matrix y, in which all the zeros have "climbed" up to the top. That is, any zeros ...

circa 2 anni ago

Solved

Duplicates

Write a function that accepts a cell array of strings and returns another cell array of strings *with only the duplicates* retai...

circa 3 anni ago

Solved

Remove the air bubbles

Given a matrix a, return a matrix b in which all the zeros have "bubbled" to the top. That is, any zeros in a given column shoul...

circa 3 anni ago

Solved

Extract leading non-zero digit

<http://en.wikipedia.org/wiki/Benford%27s_law Benford's Law> states that the distribution of leading digits is not random. This...

circa 3 anni ago

Solved

Sums with Excluded Digits

Add all the integers from 1 to n in which the digit m does not appear. m will always be a single digit integer from 0 to 9. no...

circa 3 anni ago

Solved

Find the sum of the elements in the "second" diagonal

Find the sum of the elements in the diagonal that starts at the top-right corner and ends at the bottom-left corner.

circa 3 anni ago

Solved

Right and wrong

Given a vector of lengths [a b c], determines whether a triangle with those sides lengths is a right triangle: <http://en.wikipe...

circa 3 anni ago

Solved

Return the first and last character of a string

Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

circa 3 anni ago

Solved

Project Euler: Problem 1, Multiples of 3 and 5

If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

circa 3 anni ago

Solved

Sum of diagonal of a square matrix

If x = [1 2 4; 3 4 5; 5 6 7] then y should be the sum of the diagonals of the matrix y = 1 + 4 + 7 = 12

circa 3 anni ago

Solved

Triangle sequence

A sequence of triangles is constructed in the following way: 1) the first triangle is Pythagoras' 3-4-5 triangle 2) the s...

oltre 3 anni ago

Solved

Find a Pythagorean triple

Given four different positive numbers, a, b, c and d, provided in increasing order: a < b < c < d, find if any three of them com...

oltre 3 anni ago

Solved

Side of a rhombus

If a rhombus has diagonals of length x and x+1, then what is the length of its side, y? <<http://upload.wikimedia.org/wikipe...

oltre 3 anni ago

Solved

Dimensions of a rectangle

The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...

oltre 3 anni ago

Solved

Side of an equilateral triangle

If an equilateral triangle has area A, then what is the length of each of its sides, x? <<http://upload.wikimedia.org/wikipe...

oltre 3 anni ago

Solved

Make a low pass filter

Make a first order low pass filter that will filter out the high frequency oscillations for the given input signal. The cut-off ...

oltre 3 anni ago

Solved

Model a simple pendulum

Model a simple pendulum of length 200cm with bob of mass 100g and plot the position in degrees. The pendulum starts at 30 degree...

oltre 3 anni ago

Solved

Model a falling body

An object is falling freely from a height of 22 meters under the force of gravity. <<http://blogs.mathworks.com/images/seth/c...

oltre 3 anni ago

Solved

Add damping to a mass spring system

Model an ideal mass-spring-damper system shown below where the spring is initially stretched. <<http://blogs.mathworks.com/im...

oltre 3 anni ago

Solved

Model a mass spring system

Model an ideal mass-spring system shown below where the spring is initially stretched. <<http://blogs.mathworks.com/images/se...

oltre 3 anni ago

Solved

Produce a Fibonacci sequence

Construct a diagram that generates the Fibonacci sequence: 1, 1, 2, 3, 5, 8, 13, 21, 34.....up to 377 The Fibonacci sequ...

oltre 3 anni ago

Solved

Counting pulses in a signal

Count the number of pulses that are the result of summing each pulse generator block. Pulse Generator blocks produce a recurr...

oltre 3 anni ago

Solved

Make a full wave rectifier

Produce a full wave rectifier waveform for the given sine wave source. For a sine wave input, the output of the full wave rec...

oltre 3 anni ago

Solved

Make a half wave rectifier

Produce a signal that outputs the given sine wave source when it is greater than zero and outputs zero when it is less than zero...

oltre 3 anni ago

Solved

Produce a cosine wave

Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/cosine-eqn.png>>

oltre 3 anni ago

Solved

Produce a sine wave

Produce a sine wave with amplitude 3: <<http://blogs.mathworks.com/images/seth/cody/sine-eqn.png>>

oltre 3 anni ago

Solved

Add offset to a signal

Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/add-offset-eqn.png>> You should see a downward...

oltre 3 anni ago