Submitted by Jhun Vert on February 9, 2013  12:24am
The following models of CASIO calculator may work with this method: fx570ES, fx570ES Plus, fx115ES, fx115ES Plus, fx991ES, and fx991ES Plus.
The following calculator keys will be used for the solution
Name 
Key 
Operation 

Shift 

SHIFT 
Mode 

MODE 

Name 
Key 
Operation 

Stat 

SHIFT → 1[STAT] 
AC 

AC 

This is one of the series of post in calculator techniques in solving problems. You maybe interested also on my previous post in calculator technique for progression problems and calculator technique for clock problems; both in Algebra.
Submitted by Jhun Vert on January 30, 2013  12:58am
The following models of CASIO calculator may work with these methods: fx570ES, fx570ES Plus, fx115ES, fx115ES Plus, fx991ES, and fx991ES Plus.
Before we go to Calculator technique, let us first understand the movements of the hands of our continuously driven clock.
For simplicity, let "dial" be the unit of one hand movement and there are 60 dials in the complete circle as shown in the figure.
Submitted by Jhun Vert on January 27, 2013  11:22pm
This is the first round for series of posts about optimizing the use of calculator in solving math problems. The calculator techniques I am presenting here has been known to many students who are about to take the engineering board exam. Using it will save you plenty of time and use that time in analyzing more complex problems. The following models of CASIO calculator may work with these methods: fx570ES, fx570ES Plus, fx115ES, fx115ES Plus, fx991ES, and fx991ES Plus.