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rui gao


Last seen: más de 1 año hace Con actividad desde 2018

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Estadística

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Parallelogram rule for vectors
Is there some methods to calculate the summation of these four red vectors showed below? For example, V1 = [4,3]; V2 = [-3,4]...

más de 4 años hace | 1 respuesta | 0

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How to delete the branches?
Maybe I can delete these segment lines in ArcGIS as the small segment lines can be identified as short length.

más de 4 años hace | 0

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How to delete the branches?
I have a matrix which just consist by 0 and 1, like the figure above (1 is black and 0 is white). It's kind of river, but ther...

más de 4 años hace | 2 respuestas | 0

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Questions about 'geotiffwrite'
Hello, any suggestions would be appreciated. I use matlab to read '*.tif' (DEM), and do some data processing. After the process...

casi 5 años hace | 0 respuestas | 1

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How to combine cells with a matrix?
I want to extract 6 lines from a ascii file, and add these lines into another text file which just contains a matrix, like 500*5...

más de 5 años hace | 1 respuesta | 0

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How to find column and row indexes of items that are +-inf or Nan ?
Hi. If I need omit these elements (inf) to calculate the variance, how to achieve it?

más de 5 años hace | 0