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Friedrich


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17 total contributions since 2014

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Answered
Reading raw image file of unknown size
If you make some assumptions about the image, there is a way to find the height and width. 1. Image is all grayscale uint8 ...

1 year ago | 1

Submitted


Faster base2dec Function
This is a fast replacement for base2dec. It has the same syntax as base2dec and does not require compiling.

1 year ago | 0 downloads |

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Submitted


Faster dec2base Function
This is a fast replacement for dec2base. It has the same syntax as dec2base and does not require compiling.

1 year ago | 1 download |

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Submitted


mfft
This code is designed to help learn and understand the fast fourier algorithm. For this purpose it is kept as short and simple a...

1 year ago | 2 downloads |

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Answered
initialize a MxN matrix with the same number
I know this is old but I could not let it go. I found A=zeros(M,N)+10; to be the fastest. At least on my computer. Heres...

1 year ago | 3

Answered
Matlab FFT vs MEX FFTW
The difference in speed might be caused by your inputs being rational and not complex. In this case Matlab calls the fft for rea...

2 years ago | 0

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


Can you reshape the matrix?
Given a matrix A, is it possible to reshape it into another matrix with the given number of rows?

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...

5 years ago

Solved


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

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


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


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


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

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


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


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