We have a Aurex Scientific Calculator SC-6145 but unfortunately have not instructions on how to use it. We cannot simply multiply two numbers together because it is in a mode we cannot get it out of. Does anyone know where I can get my hands on a set of instructions for this model? Thank you

To find percentages on this calculator, or any calculator, you divide one number by the other, and multiply the result by 100.

For example, for 2 out of 5, we type in 2, hit the divide button, type in 5 and hit the equals sign and we will get 0.4. To make this into percentage, we then multiply the answer by 100 to get 40%.

Good luck,

Paul

Get the calculator out of scientific notation display mode. Put it in Normal (1 or 2) or Floating point mode. If you have a rest button use it.

Press[INV][FIX][.]

You configured the calculator to do calculation in base 8 (octal). Reset calculator or change numeration to base-10 (decimal).

Percent simply means "out of 100", so one half (ie 0.5) needs to be multiplied by 100 to give 50% (for example).

Your calculator may have a percentage function (usually on the equals sign but you will need to refer to the instructions to check how it works.

Press 2nd [SCI] to switch the calculator to display all results in scientific notation. The results are the same whether you do it in scientific notation or not, it's just how the number is displayed.

You must have pressed the MODE key followed by SOLV , QUAD or SIMUL-2 or SIMUL-3 . If the calculator has these a programs they solve a Quadratic equation, a simultaneous system of two linear equations (SIMUL-2) . a system of 3 linear equations (SIMUL-3).

To use these solvers (IF YOU ARE INTERESTED), you select the solver you want and you will be prompted for a first coefficient (a, or a1). You enter the value and press the DATA key and you will be prompted for the next coefficient.

To exit the Solver mode press the MODE key followed by the key next to which there is DEC or >DEC. It might also be marked COMP.
Sorry, I do not have that very calculator but an other AUREX Scientific calculator (DS-752C).

If you want to use degrees (to have a DEG appear on top of the screen) you must exit all base-N modes (bin, oct, hex, or pent if available) and set the calculator numeration mode to DEC, decimal (the usual computational moode). The other modes are appropriate for handling certain types of calculations with integer (whole) numbers.

Have you tried removing the batteries for a day or two?
Regards
Phillip

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