Gabriel Ozouf 3501146e35 [shared/continuous_function_cache] Detach cache from function ...

When three functions or more, the third function and later don't use
caching. But it is still possible for them to have been linked to a
cache (for instance if previous functions had been deactivated earlier).
To avoid a function tapping into another function's cache, we reset the
cache.

e.g. Define 3 functions f(x)=1, g(x)=2, h(x)=3, and deactivate f.
     Draw the graph, come back, reactivate f, then draw again.
---> The space between y=2 and y=3 will be filled with the color of h,
as h "remembers" using cache n°2, wich currently contains the values of
function g.

2020-12-02 16:50:17 +01:00

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