# 20 Most Recent Sharp EL-531VB Calculator Questions & Answers

http://www.sharpusa.com/files/cal_man_EL531_509.pdf.

Sharp EL-531VB... | Answered on Mar 22, 2019

Can anyone provide the steps for calculating IRR on the Sharp EL-531WH?

Sharp EL-531VB... | Answered on Oct 27, 2018

Set up > TAB > then select how many numbers you want after the decimal place.

Sharp EL-531VB... | Answered on Jan 16, 2016

Hi there,

Press the fraction key after you get the answer.

Sharp EL-531VB... | Answered on Nov 26, 2014

Hi there,

Change your settings to scientific notation. To do this press SETUP and choose 0 for FSE and then 1 for SCI.

Sharp EL-531VB... | Answered on Nov 26, 2014

On any SHARP scientific calculator the combination button is always above the 5 (except the financial calculator). To get a combination type in the n value (the total number of items) press 2nd F and the 5 button and then type in the number of selected items and press =.

Sharp EL-531VB... | Answered on Nov 26, 2014

The calculator is non programmable but if you use the up arrow key in a mode you can see previous calculations in the memory

Sharp EL-531VB... | Answered on Aug 27, 2014

The half life of Actinium 226 is about 1.2 days (Check with the source of the question). Let the half life be T_1/2.
The equation of the radioactive decay is
N(t)=N_0*exp(-ln2*t/T_1/2)
For the mass
m(t)=m_0*exp(-(ln2)*t/T_1/2)

There remains 6.16 mg after 87 hours.

Sharp EL-531VB... | Answered on Jul 26, 2014

Press SETUP, select "FSE", then select "SCI".

Sharp EL-531VB... | Answered on Apr 25, 2014

Yes look you can't enter the base in calculators it's default 10 so use:
log x base y = log x / log y
log (x*y) = log x + log y
log (x/y) = log x - log y
so instead of log 8 base 2 input log 8 / log 2 it's easy
hope you understand :)

Sharp EL-531VB... | Answered on Apr 16, 2014

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