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Array resizing: Removing elements
* Remove elements 2, 4, and 6 from row array pendingTasks

9 years ago

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Back to basics 15 - classes
Covering some basic topics I haven't seen elsewhere on Cody. Return the class of the input variable.

9 years ago

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Finding peaks
Find the peak values in the signal. The peak value is defined as the local maxima. For example, x= [1 12 3 2 7 0 3 1 19 7]; ...

9 years ago

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Change the sign of even index entries of the reversed vector
change the signs of the even index entries of the reversed vector example 1 vec = [4 -1 -2 9] ans = [9 2 -1 -4] example2...

9 years ago

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Symmetry of vector
Determine whether the vector is symmetric or not (vector could be even or odd in length). For example: x = [1 2 3 3 2 1] ...

9 years ago

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Create a vector whose elements depend on the previous element
The idea is to create a vector A whose elements depend on the previous element : *A(i+1) = 2*A(i)+1* *2 Inputs*: - A : The...

9 years ago

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Determine the number of odd integers in a vector
Determine the number of unique odd integers in a vector. Examples: Input x = [2 5 8 3 7 1]; Output y = 4; Inp...

9 years ago

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Back to basics 7 - Equal NaNs
Covering some basic topics I haven't seen elsewhere on Cody. Given 2 input variables, output true if they are equal, false ot...

9 years ago

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Indexing the array: Moving values
Assume sampleReadings always contains three elements. * Shift the array contents one position to the left. * The rightmost ...

9 years ago

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Relational operators and row arrays: Overweight baggage
Create a logical indexing array overweightBaggage with true in each location where the corresponding baggageWeight is greater th...

9 years ago

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pressure to dB?
given x ratio of pressure, find corresponding y dB

9 years ago

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Element-wise division
* Assign row array weightKilo with the corresponding weight in kilograms. Use the following conversion: kg = lb / 2.2

9 years ago

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Solitaire Cipher
Implement the <http://en.wikipedia.org/wiki/Solitaire_(cipher) solitaire cipher>. Since this is from Wikipedia, I am capturin...

9 years ago

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Solving Quadratic Equations (Version 1)
Quadratic equations have the form: ax^2 + bx + c = 0. Example: x^2 + 3x + 2 = 0, where a = 1, b = 3, and c = 2. The equation has...

9 years ago

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So many choices
For inputs _n_ and _k_ (in that order), output the number of ways that k objects can be chosen from amongst n distinct objects. ...

9 years ago

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Back to basics 14 - Keywords
Covering some basic topics I haven't seen elsewhere on Cody. Return a cell array of all MATLAB keywords

9 years ago

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Find the biggest empty box
You are given a matrix that contains only ones and zeros. Think of the ones as columns in an otherwise empty floor plan. You wan...

9 years ago

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How long is the longest prime diagonal?
Stanislaw Ulam once observed that if the counting numbers are <http://en.wikipedia.org/wiki/Ulam_spiral arranged in a spiral>, t...

9 years ago

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Concatenating arrays
* Assign studentIDs with concatenated row arrays groupA and groupB

9 years ago

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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...

9 years ago

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Insert zeros into vector
Insert zeros after each elements in the vector. Number of zeros is specified as the input parameter. For example: x = [1 ...

9 years ago

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Generate a vector like 1,2,2,3,3,3,4,4,4,4
Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

9 years ago

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Back to basics 9 - Indexed References
Covering some basic topics I haven't seen elsewhere on Cody. Given an input matrix and row and column, output the index of th...

9 years ago

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Logical indexing: High scores
Row array gameScores contains all player scores. Construct a row array highScores than contains all player scores greater than 5...

9 years ago

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Tree Height
Assign treeHeight with the tree height given the shadow length and angle of elevation. Simple geometry can compute the heigh...

9 years ago

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Who is the smartest MATLAB programmer?
Who is the smartest MATLAB programmer? Examples: Input x = 'Is it Obama?' Output = 'Me!' Input x = 'Who ?' Ou...

9 years ago

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Relational operators: Guessing game
Row array userGuess contains a sequence of user guesses. Create a logical indexing array correctGuess with true in each location...

9 years ago

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Logical indexing: Player scores
Player 1 and player 2 take turns playing a game. Row array gameScores contains the scores of player 1, then player 2, then playe...

9 years ago

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Integer indexing array: Shift left
Write a *single* statement that shifts row array attendanceValues one position to the left. The rightmost element in attendanceV...

9 years ago

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Find max
Find the maximum value of a given vector or matrix.

9 years ago