70 total contributions since 2013

Nizar Sbaih, Telecommunications Engineering.

Professional Interests: signal processing

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...

4 years ago

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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...

4 years ago

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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...

4 years ago

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Produce a sine wave

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

4 years ago

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Produce a cosine wave

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

4 years ago

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Add a block to a model

Produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/add-block-eqn.png>> In this case, the slope of...

4 years ago

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Connect blocks in a model

Connect the blocks in the model to produce the following signal: <<http://blogs.mathworks.com/images/seth/cody/connect-blocks...

4 years ago

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Compute a dot product of two vectors x and y

x and y are input vectors, d is a number and contains their dot product

4 years ago

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Circle area using pi

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

4 years ago

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Determine the mean of matrix

Determine the mean of matrix without using mean function Hint: use simple algorithm

4 years ago

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Number of 1s in a binary string

Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

5 years ago

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Multiply a column by a row

* Given a column vector C and and a row vector R. * Output a matrix M. * Every column of M equals to C multiplied by correspon...

5 years ago

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Arrange vector in ascending order

Arrange a given vector in ascending order. input = [4 5 1 2 9]; output = [1 2 4 5 9];

5 years ago

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Get the length of a given vector

Given a vector x, the output y should equal the length of x.

5 years ago

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Back to basics 8 - Matrix Diagonals

Covering some basic topics I haven't seen elsewhere on Cody. Given an input vector of numbers, output a square array with the...

5 years ago

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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...

5 years ago

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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

5 years ago

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Tell me the slope

Tell me the slope, given a vector with horizontal run first and vertical rise next. Example input: x = [10 2];

5 years ago

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Too mean-spirited

Find the mean of each consecutive pair of numbers in the input row vector. For example, x=[1 2 3] ----> y = [1.5 2.5] x=[1...

5 years ago

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The Hitchhiker's Guide to MATLAB

Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

5 years ago

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Implement a ROT13 cipher

Replace each character in string s1 with the character that is shifted 13 positions from it (wrap back to the beginning if neces...

5 years ago

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Alphabetize by last name

Given a list of names in a cell array, sort the list by the last name. So if list = {'Barney Google','Snuffy Smith','Dagwood ...

5 years ago

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Remove all the consonants

Remove all the consonants in the given phrase. Example: Input s1 = 'Jack and Jill went up the hill'; Output s2 is 'a ...

5 years ago

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Return the 3n+1 sequence for n

A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

5 years ago

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Select every other element of a vector

Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

5 years ago

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Target sorting

Sort the given list of numbers |a| according to how far away each element is from the target value |t|. The result should return...

5 years ago

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Summing digits

Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

5 years ago

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Who Has the Most Change?

You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

5 years ago

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Back and Forth Rows

Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

5 years ago