I forgot at the beginning of the cell:
c1 = 'black'
ls = ':'
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Directory "videos_images" must be created beforehand using the sagemath
cloud GUI, inside the directory with your .sagews worksheet.
To remove all files, in the ./videos_images you can run next cell...but be
careful, removing files !!!
Dominique
# RUN THIS CELL WITH CARE BECAUSE REMOVING FI
Hello,
animate() functon is not working anymore in sagemath cloud.
Nowadays, to make a "video" you can store a sequence a picture files (.png)
and run ffmpeg, like in the following cell, I made for displaying
Lindgren's Q-swing of a rectangle.
Most important are the last two commented lines :
