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Tangent field : plotfield fieldplot

Input :
plotfield(4*sin(t*y),[t=0..2,y=-3..7])
Output :
Segments with slope 4*sin(t*y), representing tangents, are plotting in different points
With two variables x, y, input :
plotfield(5*[-y,x],[x=-1..1,y=-1..1])



giac documentation written by Renée De Graeve and Bernard Parisse