# Unit 9 Roman Numerals in Nemeth Code

Roman numerals used in literary text, such as numbering front pages, follow UEB rules for placement of the grade 1 indicator and capitalization of letters.

When Roman numerals appear in a mathematical expression or between Nemeth Code switch indicators, the English Language Indicator (ELI) and Nemeth rules for capitalization and punctuation are followed. A Roman numeral is considered one number regardless of the number of letters it contains.

# In Nemeth code, an ELI is required:

1) before all lowercase Roman numerals that are preceded and followed by a space or punctuation symbol.

* Note: because a Roman numeral is considered one number regardless of the letters it contains, only one ELI is used at the beginning of the number.

# Example:

⠰⠊ | ⠰⠊⠊ | ⠰⠊⠊⠊ | ⠰⠊⠧ | ⠰⠧ | ⠰⠧⠊ | ⠰⠧⠊⠊ | ⠰⠧⠊⠊⠊ | ⠰⠊⠭ | ⠰⠭ |

i | ii | iii | iv | v | vi | vii | viii | ix | x |

2) before all capital single letter Roman numerals.

# Example:

⠰⠠⠊ | ⠰⠠⠧ | ⠰⠠⠭ | ⠰⠠⠇ | ⠰⠠⠉ | ⠰⠠⠙ | ⠰⠠⠍ |

I | V | X | L | C | D | M |

# In Nemeth code, an ELI is NOT required if:

1) the a Roman numeral consists of two or more capital letters.

* Note: because a Roman numeral is considered one number regardless of the letters it contains, a double capital letter indicator is used to capitalize multi-letter Roman numerals.

# Example:

⠠⠠⠊⠊ | ⠠⠠⠊⠊⠊ | ⠠⠠⠊⠧ | ⠠⠠⠧⠊ | ⠠⠠⠧⠊⠊ | ⠠⠠⠧⠊⠊⠊ | ⠠⠠⠊⠭ |

II | III | IV | VI | VII | VIII | IX |

2) The Roman numeral is entirely enclosed in a pair of grouping symbols.

# Examples:

(iii)

⠷⠊⠊⠊⠾

(X)

⠷⠠⠭⠾

3) The Roman numeral is preceded or followed by a sign of comparison.

# Examples:

X < C

⠠⠭⠀⠐⠅⠀⠠⠉

m = 1,000

⠍⠀⠨⠅⠀⠼⠂⠠⠴⠴⠴

4) The Roman numeral occurs in an unspaced sequence of terms.

# Examples:

x-vi = iv

⠭⠤⠧⠊⠀⠨⠅⠀⠊⠧

C-X(V)+L

⠠⠉⠤⠠⠭⠷⠠⠧⠾⠬⠠⠇

# Roman Numerals as Identifiers

When Roman numerals are used as identifiers (numbering for lists, etc.), Nemeth Code rules for punctuating numbers apply. The punctuation indicator is required before a sign of punctuation.

# Examples:

i.

⠰⠊⠸⠲

vi)

⠰⠧⠊⠾

(vi)

⠷⠧⠊⠾

I.

⠰⠠⠊⠸⠲

IV.

⠠⠠⠊⠧⠸⠲

(III)

⠷⠠⠠⠊⠊⠊⠾

XX)

⠠⠠⠭⠭⠾

# Code Switch Indicators

Nemeth Code Roman numerals appear between Nemeth Code switch indicators.

*(The following examples include Nemeth Code switching.)*

# Examples:

Determine if M > DCC or if M < DCC.

⠠⠙⠑⠞⠻⠍⠔⠑⠀⠊⠋⠀⠸⠩⠀⠠⠍⠀⠨⠂⠀⠠⠠⠙⠉⠉⠀⠸⠱⠀⠕⠗⠀⠊⠋⠀⠸⠩

⠠⠍⠀⠐⠅⠀⠠⠠⠙⠉⠉⠀⠸⠱⠲

If i = 1, and ii = 2, then iii = ?

⠠⠊⠋⠀⠸⠩⠀⠊⠀⠨⠅⠀⠼⠂⠠⠀⠠⠄⠯⠀⠊⠊⠀⠨⠅⠀⠼⠆⠠⠀⠠⠄⠮⠝⠀⠊⠊⠊⠀⠨⠅⠀⠿⠀⠸⠱

Find the products of the following numbers.

i. 23 X 19

ii. 45 X 27

iii. 50 X 68

⠀⠀⠀⠀⠠⠋⠔⠙⠀⠮⠀⠏⠗⠕⠙⠥⠉⠞⠎⠀⠷⠀⠮⠀⠋⠕⠇⠇⠪⠬

⠝⠥⠍⠃⠻⠎⠲⠀⠸⠩

⠰⠊⠸⠲⠀⠼⠆⠒⠈⠡⠂⠔

⠰⠊⠊⠸⠲⠀⠼⠲⠢⠈⠡⠆⠶

⠰⠊⠊⠊⠸⠲⠀⠼⠢⠴⠈⠡⠖⠦

⠸⠱