I would like to get more precision in my answers on the Casio FC200V. I would like for it to show me more than 2 digits after the decimal point. Is there a setting or way to make this happen? Currently I am able to get only two places after the decimal point. This rounding off is leading to certain inaccuracies in a few of my calculations.
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The two calculators you are referring to do not have a financial utility. they cannot calculate cash flows. Casio does make a financial calculator, the FC-200V. Texas Instruments has two or three Business Analysts and so does HP. Some Casio Graphing Calculators are able to perform TVM, Amortization and such like financial applications.
To calculate a number to an arbitrary power you use the button labeled ^ .
If you want the cube of 2 your enter [^] will give you 8. If your exponent is negative use the sign change key (-) and close the negative exponent between parentheses : for exemple the sequence to compute 2 to power of negative 5 is as follows 2[^] [(] 5 [(-)] [)] which means you enter the value of the exponent before the change sign (-). If you use the big MINUS sign you will get a syntax error.