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

Hello,
On Sharp calculators, the shift key is the [2ndF] key.
Hope it helps.

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

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

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

Heres how to set it up...

Hi there, Press the fraction key after you get the answer.

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

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 =.

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

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.

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

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 :)