Francesco Finazzi
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Francesco Finazzi is a researcher at the Dept. of Management, Economics and Quantitative Methods of the University of Bergamo, Italy. He received his Ph.D. in Applied Statistics at the Department of Quantitative Methods, University of Milan-Bicocca, with a thesis on "Statistical modelling in image analysis for the extraction of geometrical shapes". He received his Ms.C. degree in Computer Engineering at the University of Bergamo in 2005. His research interests are in space-time stochastic models, geostatistics, remote sensing data, environmetrics, image analysis, artificial vision and distributed computing. He is research affiliate at the School of Mathematics and Statistics of the University of Glasgow, UK.
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A résolu
Binary numbers
Given a positive, scalar integer n, create a (2^n)-by-n double-precision matrix containing the binary numbers from 0 through 2^n...
environ 14 ans il y a
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radius of a spherical planet
you just measured its surface area, that is the input.
environ 14 ans il y a
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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...
environ 14 ans il y a
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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...
environ 14 ans il y a
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Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]
environ 14 ans il y a
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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...
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The Goldbach Conjecture
The <http://en.wikipedia.org/wiki/Goldbach's_conjecture Goldbach conjecture> asserts that every even integer greater than 2 can ...
environ 14 ans il y a
A résolu
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:...
environ 14 ans il y a
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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...
environ 14 ans il y a
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Weighted average
Given two lists of numbers, determine the weighted average. Example [1 2 3] and [10 15 20] should result in 33.333...
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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...
environ 14 ans il y a
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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...
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Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0
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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.
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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 ...
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Question
Matrix fill-in when solving sparse linear systems
I am solving the sparse linear system y=c'\b where c (10'000x10'000 density 0.0076) is the result of a Cholesky factorization wh...
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