Question about Sharp SHREL738 Calculator
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Posted on Jan 02, 2017
You have several number display formats : Normal1, Normal2, Sci, ENG
If a number is too small or too large and the calculator cannot display it with the necessary number of digits (to satisfy your of decimal digits) the calculator uses Scientific notation
If you were to use the norma1 or normal2 format you will have
.0000000000000074 but your calculator displays only the first 10 places
You should learn to use and interpret results in scientific format.
Hope it helps
Posted on Sep 07, 2009
SOURCE: On the Sharp EL-738 calculator,
Jane starts with 1200$ at the beginning of the first year, and at the end of the fourth year she has 1200$+300$=1500$
Use x for her annual interest rate, that means at the end of the first year she will have 1200$*[(100+x)/100]. At the end of the second year her first-year money earns at the same rate, so she will have 1200$*[(100+x)/100]*[(100+x)/100]=1200$*[(100+x)/100]^2 at the end of the second year.
At the end of the third year she will have 1200$*[(100+x)/100]^2 *[(100+x)/100]=1200$*[(100+x)/100]^3
At the end of the fourth year she will have
1200$*[(100+x)/100]^3 *[(100+x)/100]=1200$*[(100+x)/100]^4 which is equals to 1500$
1200$*[(100+x)/100]^4=1500$ divide both sides by 1200$
[(100+x)/100]^4=1,25 take the fourth root of both sides
(100+x)/100=1,05737 both sides*100
100+x = 105,737 both sides -100
So Jane's annaual interest rate was 5,737%.
Hope it helps you.
Posted on Mar 15, 2011
I'm trying to find out how to calculate the effective rate on this machine. Example, I receive a 5% interest on a 4 month basis, what will be my annual effective rate ? In fact, what are the steps to follow ?
Many thanks !
Posted on Sep 13, 2011
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