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Tridiagonal matrix
Given vectors u and v, make a tri-diagonal symmetric matrix such that u is in the main diagonal and v is below and above diagona...

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[Thermodynamics] Estimate boiling point of n-alkanes
Estimate the boiling point (in Kelvin) of n-Alkanes (n >= 2) using the group contribution method of Joback --- ...

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Basic commands - Greatest common divisor
Please write a function, which, will put as output greatest common divisor. Example: A = [-5 17; 10 0];...

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Siren frequency and Doppler effect.
The Doppler effect is described on OpenStax University Physics at https://openstax.org/books/university-physics-volume-1/pages/1...

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Four digit number ABCD reversal
write a MATLAB function to find the four-digit number ABCD when multiplied by 4 returns DCBA. The function takes an input x=4.

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Diagonal Cross Mandala
Generate an N×N matrix with diagonals highlighted to form an artistic X-shaped mandala pattern. e.g. N = 5; 1 0 0...

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Person of interest?
given a person_of_interest, what is his_name?

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Find argmax of a function
You are given vectors x and y (=f(x)). Return the element of x for which f(x) is maximized.

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Find Next Strictly Greater Element
Given an array of numbers, create a new array where each element represents the next strictly greater element to the right of th...

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Sort Except Zeros
Sort the numbers in a vector. But the position of zeros should not be changed. Example: sort_except_zeros( [5 3 0 0 2 4] ) == [...

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2 b | ~ 2 b
Given a string input, output true if there are 2 b's in it, false if otherwise Examples: 'Macbeth' -> false 'Publius Cornelius...

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Create a vector of n alternating ones and minus ones (★★)

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07 - Common functions and indexing 6
Create a variable _m_ as a magic square with the size 6 x 6 Magic squares are defined as square matrices, where the sum of a...

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Small Riddle
Mr. Smith has two children. If the older child is a boy, what are the odds that the other child is also a boy?

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Calculate the peak value of square wave
Given the peak value of sine wave, calculate corresponding peak value of square wave, if both have same RMS voltage.

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Calculate Alcohol By Volume with Original and Final Gravity
Given an initial gravity of un-fermented wort (OG) and a final gravity of fermented wort (FG), better known as beer, it is possi...

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Usage of varargout
This Challenge is to demonstrate usage of varargout. Output a cell array using varargout of magic squares of size 1 thru n. ...

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Draw 'P' !!!
Draw a n by n matrix 'P' using 0s and 1s. (n is odd and greater than 4) if n=5 , then the output will be [1 1 1 1 1 1 0 0 0...

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Problem 44444 !!! free beer everyone
just say hallelujah to solve this problem

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Find the Pattern 3

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Create cell array of numeric arrays
Convert the input to a cell array, but only if necessary. If the input is a numeric array, return a 1-by-1 cell array contain...

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Percentage profit:2
If you are selling at x dollar, you are facing r1% profit; what will be the selling price for making r2% profit?

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Gamma Function
Evaluate the <http://en.wikipedia.org/wiki/Gamma_function/ Gamma Function>. Gamma_val(0) = Inf Gamma_val(1.2) = 0.9182

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COUNT VOWEL
Count, how many times vowels occurred. EXAMPLE: x='string the MaTLaBiAn' then the answer will be 6. x='coUnt the vowEl' th...

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Strange Number Algorithms
Three integer numbers will be provided to you. Write a function to Step1: Multiply first number by 3. Step2: Add 6 with t...

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Who have the chance?
Obtain a free 10 score in cody, if you have a chance don't change anything if you want to try or do what you can do to gain for ...

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apply zero padding to a matrix

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ASCii Code
Using matlab, give the symbol that is associated with ASCii code 122

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Orthogonalize a 2x2 matrix using the Gram-Schmidt process
Use the Gram-Schmidt process to orthogonalize two linearly independent column vectors. Return two output column vectors that are...

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Draw the symbol '+'
Draw '+' in an x-by-x matrix (where x is odd and x >3) Example: x = 5 y = [0 0 1 0 0 0 0 1 0 0 1 1 1 1 1 0 ...

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