Question about Office Equipment & Supplies
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Posted on Mar 31, 2017
I have a casio fx-82Au calculator.
When I do a square root equation it gives me a decimal answer.
How do i get it to show as a surd
I have tried using the button s<>d and it is not working. Please help!!
Posted on Oct 21, 2013
The capability of these calculators to handle irrational numbers in radical form is limited to square roots. Roots of index other than 2 are always displayed in their decimal representation.
If the calculator IO mode is set to MathIO, square roots will be displayed with the radical symbol. More complicated expressions with square roots might not be preserved and will be given as decimal numbers.
Posted on Nov 01, 2012
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Posted on Jan 02, 2017
Press SHIFT [MODE] to bring up the mode screen. Press 8 for NORM, then 2.
Bear in mind that if the magnitude of the number is too large or too small the calculator will switch to scientific notation anyway. For example, if a number has twenty leading zeros then it won't fit on the display unless it displays it as a power of ten to the negative twenty.
Posted on Apr 02, 2012
SOURCE: Hi there, I have a
The calculator can't identify that this is a surd unless you input it as a surd, ie as 3/(4*sqrt(5))= when it will then show the equivalent form 3*sqrt(5)/20 (obtained by multiplying top and bottom by sqrt(5)) and you can swap between the two forms using the S<>D button. Even adding the next 4 decimal places (hidden) won't allow the calculator to identify the underlying surd as this is simply too complcated a calculation.
Posted on Jun 30, 2011
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