They are the same thing, Casio calls it FX-115ES in some countries, such as the U.S., and FX-991ES in most other countries. I believe this has to do with model name recognition. "FX-115" has been used in various U.S. models for a long time.
"Road Calculation & setting out" Basic program for Casio Calculator fx-880p.
Math
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No, it's not programmable.
Yes.
you have to ask ella burrett
Yes you can use it.
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The Casio fx-115 ES is a scientific calculator which you can use to calculate the first and third quartiles of a data set. To calculate the first and third quartiles, you first need to arrange the data set in ascending or descending order. Once the data set is arranged, you can use the following steps to calculate the first and third quartiles: Enter the data set into the calculator by pressing the Data/Matrix button. Once the data set is entered, press the STAT button and then the VARS button. Select the data set by pressing the number key that corresponds to the data set. Access the QUARTILE option by pressing the 5 key. Enter the number 1 to calculate the first quartile or enter the number 3 to calculate the third quartile. The calculator will display the first or third quartile of the data set. These steps can be used to calculate the first and third quartiles on a Casio fx-115 ES.
no, Fx-570ex is not programmable, so does Fx - 570ex Plus.
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"Road Calculation & setting out" Basic program for Casio Calculator fx-880p.
Math
no-can-dosville babydoll
NO
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PLUS has two extra New functions.... Random integer New Equation mode