Alessandro Jacopson

Alessandro Jacopson has asked 46 questions and find answers to 86 problems.

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ANCORA IMPARO - Programming since 2001 and still learning.

Apparently, this user prefers to keep an air of mystery about them.

I am a programmer.

Alessandro Jacopson questions

In ggplot, how can I get two legends ("gradient" type) for stat_bin2d?
std::vector of struct: what will be the initial values of the members of the struct after a vector resize?
In C++, can the sum of two squared float be negative?
How can I know the type of a Windows dump file?
How can I get the standard colors used in pandas dataframe or series plot?
In pandas, a groupby followed by boxplot gives KeyError: "None of [Index(['A', 1], dtype='object')] are in the [index]"
idiomatic C++ for creating a std::vector from the last n elements of a std::map
How can I write a C++ function returning true if a real number is exactly representable with a double?
Returning NaN or throwing an exception?
In R, why do I get one millisecond difference between POSIXct and POSIXlt?

Alessandro Jacopson answers

Opencv detect quadrilateral in Python
opencv in python: Is there a easy way to compute the curvature of a contour?
What is the lshw equivalent in windows which can give me a tree structure of hardware as lshw does on Linux?
how to compare two curves (arrays of points)
MFC does not support WINVER less than 0x0501
Algorithm to compute a Voronoi diagram on a sphere?
generate random double numbers in c++
Noisy hue in OpenCV
Where to get background/negative sample images for haar training?
Does JScript support string trim method?