Hi guys,

Say I have a tuple of anonymous functions, such as:

*foolist = ((x,y)-> exp(x*y), (x,y)-> sin(x+y))*

and would like to (programatically) produce another tuple where every 
function has its overall sign changed. In my example this would be



*newfoolist = ((x,y)-> -exp(x*y), (x,y)-> -sin(x+y))*Can this be done, i.e. 
metaprogramming or some other technique? How?

Tnx!

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