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Dark energy definition in equations_ppf

Posted: August 08 2019
by srijita sinha
Hi all,

I have a sort of dumb question! I am soory if that has already been discussed. I cannot get a clear idea.

My question is:
While using spline and cubicsplint for [math] and [math] why [math] is used and not '[math]'. We need to define functions [math] and [math].

If I define [math] and [math] with '[math]' instead of '[math]' in spline and cubicsplint, how will that cause problem?

Do we need to define [math] and [math]? I think not!

Please help. Many many thanks in advance.