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Cinitiator
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Homework Statement
Could anyone please help me understand this notation? What is "it" under the variables? Is it some kind of sequence notation with 2 dimensions, or sequence notation which has the sequence member number multiplied by some other variable? What is this?
Also, what could 0 over z mean, other than 0 exponent?
Homework Equations
The Attempt at a Solution
Tried Google search without help.