Efallai y dylech gynnig rhai amrywiadau sillafu:
introduction econometrics » introductory econometrics, introduction economics, introducing econometrics
econometrics https » economics https
https recursion » types recursion, acts recursion, loops recursions
recursion array » recursion arrays
array formats » array format, assay formats, array formulas

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• Efallai y byddai ychwanegu symbol nod-chwiliwr yn adfer amrywiad geiriau: introduction econometrics https recursion array formats*.