The mathematics font has two forms of representation for the Arabic numerals:
In standard notation, numbers become the same Braille signs formed as the Latin letters a to j. Of these, they differ by using the Number sign #.
The numbers of the lowered spelling consist of Braille signs in which the dots are a number lower than in the Standard notation are set. Also these braille signs are occupied with several meanings and represent only in certain contexts are numbers.
# Numeral
a 1 digit one
b 2 digit two
c 3 digit three
d 4 number four
e 5 digit five
f 6 number six
g 7 digit seven
h 8 digit eight
i 9 Nine
j 0 digit zero
In mathematics writing an Arabic number uses the number sign and the letters a-j. This is called standard numerals. In some circumstances, we use lower braille cells to form numbers.
After the numeral #, the braille characters of the book a to j are the numbers 1 to 9 and 0, basically in addition to the next space, end of line or dash or other punctuation marks (where the decimal point and the decimal point, of course, do not count as a punctuation mark). The effect of the numeral extends over:
The effect of the number sign is canceled by each one other characters as well.
Any kind of stroke (for example, a fraction or a slash) removes the effect of the number sign so that numbers after always need a new number. An exception form dashes following numerals, which are in quotations instead of a zero before the decimal point.
A number is only to be separated at the end of the line, if this is inevitable, for example, if the length of the number the total line width exceeds.
An apostrophe that replaces the place of leading numbers, is followed by the numeral before the first digit (see example 2.1.1 B04).
Note: The digits in standard notation is in principle Numeral ahead. However, it may be useful, for. In written calculation method, the numerical symbol of the numbers to move away or completely abandon it to the Clarity (see "Appendix A1 Written Calculation method over several lines").
1 1 digit one
2 2 digit two
3 3 digit three
4 4 digit four
5 5 number five
6 6 digit six
7 7 digit seven
8 8 digit eight
9 9 Nine
0 0 digit zero
Following some characters of math writing can integers without numerals in lowered notation be written. This will make the expression a character shorter. In addition, the function of the number in a compact mathematical expression easier to be interpreted. The reduced notation is used for denominators of simple numbers. breaches - even in mixed numbers - as well as in project used as exponents, upper and lower indices (see "9.1 Number breaks and mixed numbers" and "10.3 Indices and exponents").
A number in reduced notation may be used in exponents, Indices and the like, but not in numerical breaks, a minus sign precede. Even in these cases, the numeral is not necessary. Numbers with decimal separator or outline character however, may not be written lowered. In the text font, the lowered spelling as a another possibility for short forms of number structures like Ordinal numbers, decimal classifiers and dates be used. These spellings may also in the Mathematics writing be used.
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1 (dot 2) European decimal comma (standard)
' (dot 3) American decimal period (rarely used)
' (dot 3) European three digit separator (period) (standard)
1 (dot 2) American three digit separator (comma) (rarely used)
In decimal fractions, the decimal separator is replaced by the Decimal comma 1, displayed, regardless of whether in the template a comma or a dot stands.
The dot 3 ' is avoided as a decimal separator because he in the Braille script as outline for long numbers is occupied.
Exceptions are sums of money in Swiss francs and Centimes. Here is the usual spelling in Switzerland decimal point can be retained in the Braille (see also "2.1.5 Structure of long numbers"). Become decimal points in the template in other contexts used and is this important, can be in a braille be noted technical note.
Dashes in amounts of money instead of one or two zeros are represented by the sign dots 36 -.
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#'''<'''> Periodic decimal fraction
In periodic decimal fractions is in the inkprint the repeating the repeated sequence of numbers. In the Braille writing this number sequence in parentheses <'''> set without numerals.
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' Outline characters
The division of long numbers into groups of 3 digits takes place by the outline dot 3 '. regardless of in the template used for the template (period, space, apstrophe, comma).
For sums of money in Swiss Francs and centimes is in the Usually in black the dot and accordingly in braille dot 3 '. both as decimal separation and as used (see also "2.1.3 Decimal fractions"). This leads very rarely to interpretation difficulties, since The last dot does not follow three, but only two digits and therefore can be recognized as black horses. The outline of long numbers, which is widely used in black letters Spaces are not accepted because the space the effect of the number sign picks up and the new one Number group again marked with a numeral would have to be.
Likewise, the division with apostrophes (Switzerland and Liechtenstein) is unsuitable for Braille. The apostrophe will with the same braille sign as the indicator sign for Lowercase letters representing the effect of the number sign picks.
The connections of numbers and punctuation marks are basically written as in the template. It is to note:
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i I, i Roman numeral one
v V, v Roman numeral five
x X, x roman numeral ten
l L, l Roman numeral fifty
c C, c Roman numeral hundred
d D, d Roman numeral five hundred
m M, m Roman numeral thousand
Roman numbers are written as letters (to follow). As capital letters, they must always be indicated with . ended. As lowercase letters written in the Maths font often no notice (see "3.2 and lower case of Latin letters").
Dashed Roman numerals, sometimes for multiples used by a thousand, you end up with a dash as top mark (see "8 Simple and concise capturing marks").