Question about HP 32sII Calculator

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Lost my instruction book for HP32SII calculator. Use it very infrequently. Numbers somehow got displayed as fractions, and not decimal. How do I change back to decimal display? Thanks

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Press left-shift [FDISP]. [FDISP] is the yellow-shift of the . (decimal point) key.

You can download a manual from

Posted on Nov 01, 2010


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1 Answer

I need to know how to change a decimal answer to a fraction answer

Press the S<-->D button to switch between decimal and fraction displays. Bear in mind that the calculator can not display all numbers as fractions.

Sep 03, 2013 | Casio fx-300ES Calculator

1 Answer

Error when converting complex numbers to fraction form With mode in a+bi form, when dividing two complex numbers, the answer is displayed in decimal form. The old operating system would allow the decimals...

Not quite true for OS 2.56 MP for the TINspire with Ti84 keyboard. To convert a complex decimal value, that you just calculated, into a fraction use the command Math [1:>Frac] and it will convert the value to complex fractions
See below.


Oct 27, 2011 | Texas Instruments TI-84 Plus Silver...

1 Answer

While using Casio fx-300ES , I am unable to get answers in decimals. For eg. 3/10...should give 0.3, but the answer is again displayed as 3/10. any way to solve this issue?

The calculator has two Input/Output modes: MathIO and LineIO.

LineIO is the old way of entering numbers in calculators and results are always displayed as decimal numbers. Some calculators have a fraction feature and would convert a fraction to a decimal number and back.

In MathIO you enter expressions as you would by hand or as you see them written in textbooks.
In this mode, results are by default displayed as fraction or fractions/ radicals.
To convert the fraction/radical to decimals you just press the [SD] key. If you press again you cycle through all the available display formats.
So you can (if you want) use the MathIO to manipulate expressions and convert only the last result to decimal. By the way, fractions and radicals are generally more accurate than their decimal representations.

If however seeing fractions and radicals is too painful, just set the LineIO as your default mode. To do so press [SHIFT][MODE] to open (SETUP), then select [2:LineIO]

Feb 17, 2011 | Casio fx-300ES Calculator

1 Answer

Casio-fx300 ES if i enter 2.5+2 it answers as a fraction of 9/2 how do i reset this to calculate correctly

There is a misconception that fraction are less correct than decimal result. Quite the contrary. Calculations with fractions and/or with radicals are exact while decimal calculations are approximate.
Anyway, you want decimals and so decimals you will have.
When a result is displayed in fraction or radical (root form), just press the [SD] key and it will give you the so desired decimal representation.
If somehow you cannot stand the sight of a fraction or a radical, just tell your calculator so.
Press [SHIFT] [MODE] to open (SetUp) screen and press [2:LineIO]

Feb 15, 2011 | Casio fx-300ES Calculator

1 Answer

It is showing fractions instead of Decimals when i do equations like (4 divided by 9) it gives 4/9 instead of the decimal.

Calculation results will be displayed using
fractions, r, and ?. When you press CHANGE, the display will cycle
through the following display styles:
• Mixed fractions (with or without ?) ? improper fractions (with
or without ?) ? decimal numbers
• Proper fractions (with or without ?) ? decimal numbers.

Feb 03, 2011 | Sharp ELW535 Calculator

1 Answer

I have just purchased the Sharp El-W535 and am unsure of its capability. Will the sharp el-w535 compute the sum of a list of 10 standard deviations? or do the individual standard deviations have to be...

Thank you for purchasing the SHARP Scientific Calculator Model EL-W531/W531G/W531H/W531HA/W535.
About the calculation examples (including some formulas and tables), refer to the reverse side of this English manual.
Refer to the number on the right of each title in the manual for use.
After reading this manual, store it in a convenient location for future reference.
• Some of the models described in this manual may not be available in some countries.
• This product uses a period as a decimal point.Displaying calculation results
When possible, calculation results will be displayed using
fractions, r, and ?. When you press U, the display will cycle
through the following display styles:
• Mixed fractions (with or without ?) ? improper fractions (with
or without ?) ? decimal numbers
• Proper fractions (with or without ?) ? decimal numbers
• Irrational numbers (square roots, fractions made using square
roots) ? decimal numbers
• In the following cases, calculation results may be displayed
using r:
• Arithmetic operations and memory calculations
• Trigonometric calculations
• In trigonometric calculations, when
entering values such as those in
the table to the right, results may be
shown using r.
• Calculation results may extend off
the edges of the screen. You can
see those parts by pressing l
or r (depending on whether the left or right portion is

Jan 17, 2011 | Sharp ELW535 Calculator

1 Answer

Can this convert decimal measurements to fractions of an inch

Enters a proper or improper fraction,
b?c (b { 6 digits, c { 3 digits). When
possible, improper fractions are
displayed as mixed numbers.
3 F 4 3?4
8 3 J 21?4
Single-variable functions display
decimal results.
1 F 2 0 0.25
a F b F c Enters the mixed fraction a b?c.
(a, b, c { 3 digits each, with the total
digits { 8).
6 F 4 F 6 64?6
J 62?3
"s Toggles display between a mixed
number and an improper fraction.
30 F 4 30?4
"s 71?2
"s 15?2
"s 71?2
"y Toggles display between fraction and
55 F 24 55?24
"y 2.291666667
"y 27?24
If a result would overflow or if fixed decimal is 0, no
fraction to decimal conversion occurs. It is not an error.
Denominator must be a whole number {999.

Nov 28, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

Okay, so I have a problem where I need to get what 25/3 is...when I put this into my ti-89 titanium from the home screen the only answer it gives me is 25/3, what is up with that? It won't do simple...

If you leaf through the manual with its 500 some pages you will diuscover that your last statement is not quite right.
The "problem" is that the calculator is configured to perform EXACT calculation where fractions are kept as fractions and radicals as radicals.

To have your fractions displayed as decimal numbers ALL THE TIME
Press [MODE][F2]
Use Arrow down to highlight [Exact/Approx
Use right arrow to unfold the menu list and select [3:Approximate]
Press [ENTER] to save configuration

There are two other ways to convert an exact result into an approximate one
  1. If you enter 25./3 or 25/3. or 25/3. and press [ENTER] the fraction will be displayed as a decimal number (The dot is a decimal mark, and it instructs calculator to perform approximate calculations)
  2. If enter 25/3 without the decimal marks and press [Diamond][ENTER] the result will be decimal.

Feb 17, 2010 | Texas Instruments TI-89 Calculator

1 Answer

Answers in decimals

The calculator has two Input/Output modes, MthIO and LineIO. In MthIO the results are displayed as fractions or as radicals or a mixture of fractions and radicals. What it means, is that in MthIO the calculator does exact calculations. Radicals in denominators are gotten rid of by rationalization, fractions are reduced to the same denominators before addition or subtraction. Fractions are reduced to simplest form.

In LineIO all results are displayed as decimal numbers.

If a result is exact (fractions and radicals) it can be changed to decimal form by pressing the S To D key, the one above the DEL key.

MthIO is the default IO mode. To set it, press SHIFT MODE and select 1:MthIO. To set LineIO as the IO mode, press SHIFT MODE and select 2:LineIO

Jan 20, 2010 | Casio FX-115ES Scientific Calculator

2 Answers

Problems with fractions on the Casio fx-115es

To convert fractions to decimals or decimals to fractions, you use the [S<->D] key. Each time you press the key the result is displayed in the other format.
Alternatively, If you multiply or divide two integer numbers put a decimal mark at the end of one of the numbers (any one). The result will be displayed in decimal format.

Hope it helps.

Jun 01, 2009 | Casio FX-115ES Scientific Calculator

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