Gerenuk
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Can I expand a function in
f(x)=\sum_k g_k(x\cdot k)
where g is a periodic function that is not an exponential?
So
g_k(a)=g_k(a+1)
What if there doesn't necessarily have to be a back transformation or if the expansion doesn't have to be unique?
f(x)=\sum_k g_k(x\cdot k)
where g is a periodic function that is not an exponential?
So
g_k(a)=g_k(a+1)
What if there doesn't necessarily have to be a back transformation or if the expansion doesn't have to be unique?