https://www.duolingo.com/profile/ColinJParry

Coming soonish: Roman numerals

Salvete omnes,

I've been working hard adding sentence translations, hopefully your inboxes aren't bursting with translation acceptance emails. One thing I'm adding that I'm excited to tell you all about are Roman numerals to the English to Latin sentences. In the first half of the course I've already added them. Much like how you can enter 5 for five on the Latin to English, you should be able to input IV or IIII for Quattuor. If you run into any where it isn't accepted, don't hesitate to report away.

Gratias vobis ago- for all your hard work in testing the course.

Valete

Colin

September 9, 2019

36 Comments


https://www.duolingo.com/profile/The9

MCCCXXXVII

September 9, 2019

https://www.duolingo.com/profile/KaptianKaos8

1337?

September 9, 2019

https://www.duolingo.com/profile/ColinJParry

Yeah, I dunno the9 point here either. Is it some reference, or is the9 guy just making a joke? Testing my knowledge of the9 Roman numeral system? What the9 heck is going on here?

September 9, 2019

https://www.duolingo.com/profile/MacBasse

hehem, I think you mean theIX. hahahaha

September 9, 2019

https://www.duolingo.com/profile/ColinJParry

Oh duh.

September 9, 2019

https://www.duolingo.com/profile/The9

Excuse my cryptic language. I think a Latin translation would be "Optime".

September 9, 2019

https://www.duolingo.com/profile/HarutoRat

l337 h4xx0rZ = incursores praetoriani?

September 9, 2019

https://www.duolingo.com/profile/DanielVanD18

Today is XII/IX/MMXIX. Julius Caesar was born in XIII/VII/C. Rome was founded on XXI/IV/DCCLIII. Rome (west Rome) fell in CDLXXVI. They are the important dates of Rome. Does anyone have more? (Eg. Brutus, Nero)

September 12, 2019

https://www.duolingo.com/profile/clintack

Need to put a negative sign, somehow, in front of two of those years.

Or better yet, translate it all to Ab Urbe Condita...

E.g. Today is XII/IX/MMDCCLXXII A.U.C. (P.S. It's a palindrome year!)

September 13, 2019

https://www.duolingo.com/profile/LordEragon05

MMXIX

September 11, 2019

https://www.duolingo.com/profile/slogger

Cool! That will be fun. Thanks. (But more lessons would be even better!)

September 9, 2019

https://www.duolingo.com/profile/saveriocolasanto

Very cool, thank you! I like the Latin course so far. IX/VIII/MMXIX

September 9, 2019

https://www.duolingo.com/profile/Jason524402

Is the original system going to be used or the reformed one from later on? https://youtu.be/Q5_2o8MITH4?t=76

September 9, 2019

https://www.duolingo.com/profile/ColinJParry

I'm adding IIII and IV as well as IX and VIIII plus any of the subtractive numbers for 19, 29 etc. Funnily enough though, using IIII instead of IV makes addition using Roman numerals stupid easy. Just literally write the two numbers together in descending order from largest to smallest numerals then simplify. XVIII plus LXIIII = LXXVIIIIIII = LXXXII.

September 9, 2019

https://www.duolingo.com/profile/DavidNash481642

Subtraction (again, using IIII = 4, VIIII = 9, etc.) is also easy: Write both numbers out, then strike common symbols out of both numbers until the smaller number is gone. Break up symbols in the larger number as needed, so if you don't have enough I's in the larger number, turn a V into IIIII or an X into VIIIII (etc.).

On the other hand, multiplication is awkward, and I don't even want to think about division.

September 11, 2019

https://www.duolingo.com/profile/ColinJParry

Multiplication is just additive, LX times IIII = LLLL + XXXX = LLLLXXXX = CCXXXX, and so on. Division is subtractive, LXXXX divided by VIIII, keep subtracting 9 from 90 until you can't anymore. There is a reason Romans invented calculators.

September 12, 2019

https://www.duolingo.com/profile/smalltiddygothbf

DCLXVI

September 9, 2019

https://www.duolingo.com/profile/ColinJParry

ooh edgy lol

September 9, 2019

https://www.duolingo.com/profile/smalltiddygothbf

Gratias tibi

September 11, 2019

https://www.duolingo.com/profile/jairapetyan

After reading this post I got all enthused and put "IV" in my translation the next time a "four" came up. Predictably, DL marked it wrong and I immediately clicked the report button. But then I reflected. My sentence was from Latin to English, where we really wouldn't use a Roman numeral. My apologies.

September 10, 2019

https://www.duolingo.com/profile/dreamloomer

Gratias tibi.

September 9, 2019

https://www.duolingo.com/profile/EstoyGloria

I can now legitimately count up all the way to centillion (I think that's long-scale . . . Creo . . .) thanks to Latin! :D

September 10, 2019

https://www.duolingo.com/profile/_Imperial

Wow! The Latin course will really benefit from this. Posted XI/IX/MMXIX (for all you roman numeral fans c; )

September 11, 2019

https://www.duolingo.com/profile/JimThibaul

Roman numerals would be a nuisance; I remember studying roman numerals and it struck me that the base ten system we use today is much more logical.

September 9, 2019

https://www.duolingo.com/profile/ColinJParry

You're right, Roman numerals were soo impractical, it's not like anyone built giant amphitheaters, or circuses, or an empire using them.

September 9, 2019

https://www.duolingo.com/profile/ColinJParry

Furthermore, you don't have to use them, they're entirely optional. You can enter tres or III and both answers should be accepted.

September 9, 2019

https://www.duolingo.com/profile/The9

Yes, it's not like other numeral systems than base 10 are useful or logical. For example base 2 in digital computing, base 7 for weekdays, base 12 for months and hours, base 60 for minutes and seconds or base 360 for angles.

September 10, 2019

https://www.duolingo.com/profile/JimThibaul

We are base 10 creatures.... however in computer science binary "this is digital switch 1/0", octal, and more important Hex are important. So in this day and age it may make more sense to teach kids to count from 1 to F....

September 10, 2019

https://www.duolingo.com/profile/The9

I'm not so sure humans are implicitly base 10 creatures (except for our number of fingers and toes). It seems logical to use the base 10 for us, but I would argue that is only because of convention.

If we had grown up using base 6 (or another number) that would seem the most logical.

Also, if we really were such base 10 creatures, we would change to have a 10 hour clock, 10 months of the year, 10 minutes per hour, 10 seconds per minute, 10 day week and so on.

September 10, 2019

https://www.duolingo.com/profile/alphabeta

Hmm, I don't think your point flies for time. Base 12 for time works well since we can divide it up so many ways: 2, 3, 4, and 6 are all divisors. 10 only has 2 and 5. Similarly for 60, since it's divisible by 12 and therefore has that same useful property. Base 10 is still much more useful for counting large numbers and (metric) unit conversions since you can just move the decimal around.

September 12, 2019

https://www.duolingo.com/profile/ColinJParry

Roman numerals were actually very efficient and well thought out, basically stemming from finger counting. For example, V is half of X, literally half, bisect the X and what do you get? 2 V's... Never thought of that did you silly?

September 13, 2019

https://www.duolingo.com/profile/Roccolingua123

yay

September 11, 2019

https://www.duolingo.com/profile/Doraemon2k6

can you give me ten lingot ?

September 11, 2019

https://www.duolingo.com/profile/_Imperial

I think you mean. X Lingots.

September 11, 2019
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