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Joseph


71 total contributions since 2009

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Question


Multiple named tokens in a regexp
Hi all, I am having a little trouble finding out if you can have named tokens that are optional in a regular expression. M...

3 years ago | 0 Answers | 0

0

answers

Answered
Power Set
function logical_indices = logical_indices_for_power_set(set_size) %LOGICAL_INDICES_FOR_POWER_SET creates a cell array cont...

3 years ago | 0

Solved


Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

4 years ago

Solved


Pizza!
Given a circular pizza with radius _z_ and thickness _a_, return the pizza's volume. [ _z_ is first input argument.] Non-scor...

4 years ago

Posted


ismember 2012a behavior change for symbolic variables
Hi all, I have developed code using the ismember() function in Matlab versions prior to 2012a, but since I have upgraded my cod...

4 years ago | 1679 views

Solved


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 + ...

4 years ago

Solved


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...

4 years ago

Solved


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 ...

4 years ago

Solved


Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...

4 years ago

Solved


Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

4 years ago

Solved


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...

4 years ago

Solved


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...

4 years ago

Solved


Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

4 years ago

Solved


Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

4 years ago

Solved


Determine whether a vector is monotonically increasing
Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

4 years ago

Solved


Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

4 years ago

Solved


Is my wife right?
Regardless of input, output the string 'yes'.

4 years ago

Solved


Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

4 years ago

Solved


Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; and ...

4 years ago

Solved


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...

4 years ago

Solved


Add two numbers
Given a and b, return the sum a+b in c.

4 years ago

Solved


Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

4 years ago

Solved


Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Example...

4 years ago

Solved


Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

4 years ago

Solved


Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

4 years ago

Solved


Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

4 years ago

Question


Defining/Checking assumptions on symoblic arrays
Hi all, I have been encountering a problem/inconsistency while using Matlab 2011b for defining and checking symbolic variable...

4 years ago | 1 Answers | 1

1

answer

Posted


pchip and spline MEX functions
Hi all, I had found difficulty in finding an option for a decent 'spline' or 'pchip' type interpolant that could be compiled in...

4 years ago | 2730 views

Answered
Problem and attempted workaround for using interp1() with the matlab coder
If anyone is intrested in a version of 'pchip' and/or 'spline' that can easily be modified for use in a MEX function (because in...

4 years ago | 0

| accepted

Question


Problem and attempted workaround for using interp1() with the matlab coder
Hi all, I had wanted to replicate a heating cycle for a simulation based upon given heating rates (rate = [3 2 1] K/s) across ...

4 years ago | 1 Answers | 0

1

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