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# Chris Coote

216 total contributions since 2019

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7 months ago

Solved

Let's get back to school, and create multiplication tables
For a given range, create multiplication tables. (start is always < endno) Example start = 17 endno = 19 Then, ...

7 months ago

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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...

7 months ago

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only input
Return the output without writing any code into the function.

7 months ago

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Duplicate each element of a vector.
for an n-dimensional vector x, the function should return another vector 2n-dimension which each element is repeated twice. Ex...

7 months ago

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Rotate a Matrix
Input a Matrix x, Output y is the matrix rotating x 90 degrees clockwise

7 months ago

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Who knows the last digit of pi?
There is only one man who knows the last digit of pi, who is that man? Give the name of that man, who, by popular believe, can ...

7 months 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...

7 months ago

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Rotate a Matrix by 90 degrees
Rotate a Matrix by 90 degrees Example: If the input is: X = 1 2 3 4 5 6 7 8 9 ...

7 months ago

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Number of Horns on a unicorn!
Calculate the number of horns on a *unicorn*! And I'm talking about a unicorn with not more than one horn on it!

7 months ago

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Back to basics 22 - Rotate a matrix
Covering some basic topics I haven't seen elsewhere on Cody. Rotate the input matrix 90 degrees counterclockwise (e.g. [1 2; ...

7 months 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...

7 months ago

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surface of a spherical planet
you just discovered its circumference, that is the input.

7 months ago

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Pattern matching
Given a matrix, m-by-n, find all the rows that have the same "increase, decrease, or stay same" pattern going across the columns...

7 months ago

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Subset Sum
Given a vector v of integers and an integer n, return the the indices of v (as a row vector in ascending order) that sum to n. I...

7 months ago

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Test for balanced parentheses
Given the input inStr, give the boolean output out indicating whether all the parentheses are balanced. Examples: * If ...

7 months ago

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Word Counting and Indexing
You are given a list of strings, each being a list of words divided by spaces. Break the strings into words, then return a maste...

7 months ago

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Indexed Probability Table
This question was inspired by a Stack Overflow question forwarded to me by Matt Simoneau. Given a vector x, make an indexed pro...

7 months ago

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Encode Roman Numerals
Create a function taking a non-negative integer as its parameter and returning a string containing the Roman Numeral representat...

7 months ago

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Read a column of numbers and interpolate missing data
Given an input cell array of strings s, pick out the second column and turn it into a row vector of data. Missing data will be i...

7 months ago

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Interpolator
You have a two vectors, a and b. They are monotonic and the same length. Given a value, va, where va is between a(1) and a(end...

7 months ago

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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.

7 months ago

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Back to basics 19 - character types
Covering some basic topics I haven't seen elsewhere on Cody. Return the number of punctuation characters in the input variabl...

7 months ago

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Back to basics - mean of corner elements of a matrix
Calculate the mean of corner elements of a matrix. e.g. a=[1 2 3; 4 5 6; 7 8 9;] Mean = (1+3+7+9)/4 = 5

7 months ago

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Back to Basics - New Data Type in R2016b - convert a char to a string
Convert an char array into a string.

7 months ago

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Back to Basics - Find no. of elements in a matrix?
Let A be a m*n matrix. Find the total no. of elements in A ? (Hint - formula based) A = [1 2 3;4 5 6]; output = 6

7 months ago

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Back to basics 15 - Benchmark
Covering some basic topics I haven't seen elsewhere on Cody. Return an array of the benchmark values for MATLAB.

7 months ago

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Back to basics 5 - Clipboard
Covering some basic topics I haven't seen elsewhere on Cody. Copy the input string to the clipboard

7 months ago

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Back to basics 26 - Keywords
Covering some basic topics I haven't seen elsewhere on Cody. Return a cell array of strings of all MATLAB keywords.

7 months ago

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Back to basics 3 - Temp Directory
Covering some basic topics I haven't seen elsewhere on Cody. Return a string that is the path to the system's current temp di...

7 months ago