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Calculating Geometric Mean in Texas BA II Plus

Hello,

Does anybody know how to calculate geometric mean in Texas BAII Plus? Thank you.

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Really simple (Example): Last three yrs, returns for a company’s common stock have been -9.34%, 23.45% and 9.82%. Compute the compound annual rate of return over the three yr period.

1. 1 + R(G) = [(-.0934+1) x (.2345+1) x (.0892+1)]…..multiply all together and you get 1.2190
then to the calculator…
2. 1.2190 [y^x] 0.33333 [=] 1.0682
3. 1.0682 - 1 = .0682 => R(G) = 6.82%

BTW, you can use [1/x] in this case. Like this:
1.2190 [y^x] 3 [1/x] [=]