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HP12 C decimal in place of period - HP 12c Calculator

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To switch the radix mark, turn the calculator off, press and hold the decimal point key, press the ON key, then release both keys.

Posted on Jun 02, 2014


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108.2135 round to the nearest tenth

is this about the answer to your question, or how to make your calculator display that way?

If the former, .21 is closer to 0.20 than to 0.30, so it's 108.2 (period)

if the latter, it'll depend on your calculator. There will likely be a key or menu item saying DISP for display, or FIX. For many calculators, then there is an option for Fixed, Scientific, or Engineering. Fixed will take a (usually) one digit input for how many decimal places after the decimal to display, (rounded). Scientific will do scientific notation, taking how many digits after the most significant digit. Engineering will be for how many digits after the decimal place, where there are one to three leading numbers before the decimal so that the scientific notation exponent is always a power of three (easier to match units like watts, milliwatts, kilowatts, etc, which often, at least for metric, go in jumps of three orders of magnitude.

Good Luck.

Nov 11, 2015 | Office Equipment & Supplies

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How do you change 6.32 a recurring decimal into a fraction

Sorry, you have to be more specific. How many decimals are repeating.
If your number is 6.32323232... the period is 32.
Decompose the number in two parts 6 and the repeating part. 0.323232 =0.32
0.32 repeating = 32/99
Your number will be 6+32/99= (6*99)/99+(32/99)= (6*99+32)99=626/99
It is irreducible.
What is important to remember is that
0.abcd where a,b,c,d are the digits that constitute the period can be written as (abcd)/9999
period/ (as many 9 as there are places in the period

0.435867 =43587/999999
Also 0.999999999999.....=1

Sep 25, 2014 | Office Equipment & Supplies

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What are rational numbers

Use the words: decimal part, not decimal fractin
Any number whose decimal part is periodic (has a recurring pattern that repeats indefinitely) is equivalent to a rational number, IS a rational number
0.345 345 345 ... =345/999=115/333
In the following screen captures, discard the last digit if it does not belong to a period. It is the effect of rounding up of the calculator

Period is 345

Period is 1
Period is 09
Period is 79

In general, if you have a decimal part of the form 0.d_1 d_2 d_3....d_n d_1 d_2 d_3 ...d_n ... where d_1 is the first digit of the period, d_2 is the 2nd digit of the period, ..., d_n is the n-th digit (and the last one) of the period, then the fraction representation of
0.d_1d_2...d_n d_1d_2... d_n ...=(d_1d_2...d_n)/(99...9) where the number of 9's in the denominator is equal to the number of digits in the period.
Once the fraction is found, one should reduce it to its simplest form.

Mar 02, 2014 | Office Equipment & Supplies

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Define algebra:decimal

Decimal is the base-10 notational system for representing real numbers. The expression of a number using the decimal system is called its decimal expansion, examples of which include 1, 13, 2028, 12.1, and 3.14159.

Each of the arabic numerals 0 to 9 is called a decimal digit, and the period placed to the right of the units place in a decimal number is called the decimal point (or, in the case that a comma is instead used for this purpose, the decimal comma).

The decimal is a way of managing numbers that has ten as a starting point, or base. It is sometimes called the base ten or denary numeral system. The word "decimal" is also used instead of the word "period" to point out the dot that is sometimes used separates the positions of the numbers in this system. Almost everyone uses this nowadays and prefers the convenience of it probably because it shows up most often in calculations in nature and has "one" as another starting point for the system. The number one is usually the easiest to work with in calculations.

You may go to the link below for decimal tutorial:

Jun 16, 2011 | Computers & Internet

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Convert .714285 to the fraction 5/7?

Say you have a repeating decimal number 0.714285 714285 714285 etc. You identify the period (the repeating part) and in this case it is 714285.
ou count the number of decimal places in the period: here it is 6. Your equivalent fraction is
Fraction= period/(99...9) where the number of 9's in the denominator is equal to the number of decimal places in the period. For this case, that is 6.
0.714285 714285 714285 etc.= 714285 / 999999

Reduce the fraction and you will find 5/7

This technique works for a repeating decimal number where the period starts just after the decimal mark.

If the periodic part does not start right after the decimal mark there are modifications to be made.

Jan 16, 2011 | Office Equipment & Supplies

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How to set the decimal place to 3 places on a casio fx 300ms calculator

Decimal Point and Separator Symbols
You can use the display setup (Disp) screen to specify the symbols you want for the decimal point and 3-digit separator.
• To change the decimal point and separator symbol setting, press the MODE key a number of times until you reach the setup screen shown below.
Display the selection screen. (Disp) 1.
Press the number key ( 1 or 2) that corresponds to the setting you want to use.
1(Dot): Period decimal point, comma separator
2(Comma): Comma decimal point, period separator

Nov 27, 2010 | Casio FX-300MS Calculator

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How to turn printing on and off?

PRINT KEY: To save paper you can only print what is displayed, even in non-print mode. Pressing after the entry of a number will print the entry with the symbol “#” even in non-print mode. Pressing will insert a separator into a number entry such as a code, date, etc. Separators are displayed as a period and dashes but printed as periods. MEMORY + KEY / PRINT ON / OFF KEY: Pressing selects print mode or non-print mode. Cause the calculator to operate in a display / print or display only mode, depending upon the calculator’s present state. “P” on the display: Print mode. “NP” on the display: Non-print mode. MEMORY – KEY / DECIMAL SELECTION KEY: Pressing sets the number of decimal places in the result. “F” on the display: The answer is displayed in the floating decimal system. “3, 2, 1, 0” on the display: Presets the number of decimal places in the answer. “A” on the display (Add mode): The decimal point in addition and subtraction entries is automatically positioned to the 2nd digit from the lowest digit of entry number. Use of the add mode permits addition and subtraction of numbers without entry of the decimal point. Use of , and will automatically override the add mode and decimally correct answers will be printed.

Aug 18, 2010 | Sharp EL-1611P Calculator

1 Answer

Decimal point is replaced with comma

Check to see if the calculator is in European mode where the comma is sometimes used rather than the period.


Feb 20, 2009 | HP 33s Calculator

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