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Joseph Hollmann


Active since 2012

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I am a PhD student in Electrical Engineering at Northeastern University. My current research is focused on optical imaging for biomedical applications but I have also worked in downhole imaging.

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Remove the Zero
Given an array n, remove all zeros

9 years ago

Solved


Count number of words in string
Count number of words in string E.g. 'hi', answer is 1 'hi hi', answer is 2 'I enjoy cody', answer is 3

10 years ago

Solved


Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

10 years ago

Solved


Sum all integers from 1 to 2^n
Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

10 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...

10 years ago

Solved


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

10 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...

10 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:...

10 years ago

Solved


Distance walked 1D
Suppose you go from position 7 to 10 to 6 to 4. Then you have walked 9 units of distance, since 7 to 10 is 3 units, 10 to 6 is 4...

10 years ago

Solved


The Hitchhiker's Guide to MATLAB
Output logical "true" if the input is the answer to life, the universe and everything. Otherwise, output logical "false".

10 years ago

Solved


vector to string
Determine what the ASCII characters spell out. Example: input = [ 72 73 71 72] output = 'HIGH'

10 years ago

Solved


How to find the position of an element in a vector without using the find function
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for. Examples: fin...

10 years ago

Solved


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

10 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 ...

10 years ago

Solved


Double colon operator: Counting down
* Construct a row array countValues from startValue to endValue, elements decremented by -2 end Ex: If startValue is 10 and ...

10 years ago

Submitted


randomfacegenerator
Function creates random cartoon faces.

11 years ago | 1 download |

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Submitted


Convert an image to song
This function reads an image file and creates a tone vector

11 years ago | 2 downloads |

Submitted


copyfile
Copies all the files in a directory and all of its subdirectories

12 years ago | 2 downloads |

Submitted


LASimport
Function reads LAS files and returns recorded depth and measured data.

12 years ago | 2 downloads |

Submitted


Viewer for LWD images
Function displays LWD images. It allows the user to scroll through the image, and zoom in and out.

12 years ago | 2 downloads |

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