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# Matthew

27 total contributions since 2008

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Responded

Re: Speed of new graphics engine
Hahahaha. That has to be a joke right (?) The Mathworks fix a serious set of bugs in 12-18 months. Funny :-(

9 months ago | 34183 views

Responded

Re: Speed of new graphics engine
Yair Altman You must have received a much less flippant response to your MW support request than I did (and seemingly many other...

1 year ago | 34183 views

Responded

Re: Speed of new graphics engine
Emiel sorry for the delay in providing numbers. At my count this is the third piece of code provided in this thread. So here we ...

1 year ago | 34183 views

Responded

Re: Speed of new graphics engine
Ippei Kotera R2015a> FPS = 6.5573 R2014a> FPS = 63.4846 Environment (Win7 64bit/i7 3.2GHz/NVS300/16GB RAM)

1 year ago | 34183 views

Responded

Re: Speed of new graphics engine
SteveLord As discussed many times previously in this thread changing your graphics driver will do nothing to ease the pain that ...

1 year ago | 34183 views

Responded

Re: Speed of new graphics engine
Bruno In my testing I observed a 10 times slowdown for R2014b v R2014a for the largeDot/Other marker case. I did not observe any...

2 years ago | 34183 views

Responded

Re: Speed of new graphics engine
Rod I believe I have a similar issues with the speed of the R2014b graphics engine. A reproducible example of smaller size: n ...

2 years ago | 34183 views

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...

5 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...

5 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...

5 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 ...

5 years ago

Solved

Remove all the words that end with "ain"
Given the string s1, return the string s2 with the target characters removed. For example, given s1 = 'the main event' your ...

5 years ago

Solved

Counting Money
Add the numbers given in the cell array of strings. The strings represent amounts of money using this notation: \$99,999.99. E...

5 years ago

Solved

Create times-tables
At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

5 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...

5 years ago

Solved

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

5 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...

5 years ago

Solved

Return the largest number that is adjacent to a zero
This example comes from Steve Eddins' blog: <http://blogs.mathworks.com/steve/2009/05/27/learning-lessons-from-a-one-liner/ Lear...

5 years ago

Solved

Remove any row in which a NaN appears
Given the matrix A, return B in which all the rows that have one or more <http://www.mathworks.com/help/techdoc/ref/nan.html NaN...

5 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 ...

5 years ago

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 + ...

5 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...

5 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 ...

5 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...

5 years ago

Solved

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

5 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:...

5 years ago

Posted

bug with emlmex
Dear MATLAB community, I have a reproducible bug with the emlmex C-mex code generator. TMW support has been unable (presently) ...

8 years ago | 1580 views