Graphing Data in Excel

adam041590

New Member
Joined
Jul 28, 2017
Messages
1
I have the following formula that I would like to graph:
G(t) = G_r +(G_g-G_r) * summation from (i=1 to N) g_i *e^(-t/tau_i).

G_r and G_g are both constants and can easily be defined in a cell
tau_i and g_i are 24 sets of data given.
t is a variable.

The goal is to graph G(t) vs t and G(t) vs log t. I am unsure how to program the cell containing G(t) or how to go about a problem as such since I am unsure how to define the summation inside a cell
 

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