Question about Casio FX991ES Scientific Calculator
You may want to reset the calculator. Press the key sequence SHIFT 9. Do not be surprised if you see that G has been replaced by D. These two remind you that the angle unit is set to gradian (G), degree (D). There is a third angle unit, the radian (R).
Posted on Apr 21, 2013
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Posted on Jan 02, 2017
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