Thread: Maths stuff/vocabulary in Russian...?

I was just wondering...
Do russians, when studying maths or any other exact science, use the variants(x, y, etc) in cyrillic or latin alphabet?

I mean... for example, how do you READ this in russian?

x

We don't use cyrillic letters in math, physics, chemistry or other exact sciences. Traditionally only latin and greek alphabets are used.

x

y = игрек?

How sweet!
Then the fatorial is read like what? "эн факториал" or something?

Originally Posted by kalinka_vinnie

y = игрек?

Yep.
Вспомнилась старая шутка.

Студент-физик едет в метро, и видит написанное на стене слово из трех букв. Долго пытается сообразить, что там написано:
- Икс, игрек... Ничего не понимаю... Х*йня какая-то!

Originally Posted by erika

Then the fatorial is read like what? "эн факториал" or something?

I don't remember for sure since I haven't read a math book for ages. It's either "эн факториал" or "факториал эн/факториал числа эн". But don't worry too much. "Факториал" is a key word and you'd be understood in any case.

Да, "эн факториал". Все верно.

There is a joke of a lazy student who skipped math lecture on factorial. So then when he copied abstact of this lecture he thought that factorial stands for an explamation mark. On the math exam professor asked him of factorial and when answering professor's question student emphasized each Latin letter that is followed by a factorial.

x

Originally Posted by kalinka_vinnie

y = игрек?

Latin alphabet is used, not an English one. And letter names are Latin also.
so g = же, h = аш, j = йот, y=игрек, x = икс (не экс)

До кучи:
Sum = Сумма
Item = Слагаемое
Difference = Разность
Product = Произведение
Quotient = Частное
Dividend = Делимое
Divisor = Делитель
Multiplier = Множитель

to add = складывать
to subtract = вычитать
to divide = делить
to multiply = умножать

2^2 = Два в квадрате
2^3 = Два в кубе
2^4 = Два в четвёртой (степени)

6! = Шесть факториал

radical = радикал

sqr(2) = \| 2 = (квадратный) корень из двух

3---
\|2 = кубический корень из двух

далее корень четвёртой (пятой...) степени

lg(x) = десятичный логарифм
ln(x) = натуральный логарифм

exponent = экспонента

sine = синус
cosine = косинус
tangent = тангенс
cotangent = котангенс

Originally Posted by Ramil

Originally Posted by kalinka_vinnie

y = игрек?

Latin alphabet is used, not an English one. And letter names are Latin also.
so g = же, h = аш, j = йот, y=игрек, x = икс (не экс)

Неоднократно слышал вариант "жи".

Один из преподавателей рассказывал, что это разница "московской" и "питерской" школ -- не знаю, насколько это верно. Зато вариант "жи" позволяет избежать забавного каламбура в сочетании "сумма по j"

Originally Posted by tyomitch

Originally Posted by Ramil

Originally Posted by kalinka_vinnie

y = игрек?

Latin alphabet is used, not an English one. And letter names are Latin also.
so g = же, h = аш, j = йот, y=игрек, x = икс (не экс)

Неоднократно слышал вариант "жи".

Yes, I encountered "жи" much more often.
Edit: The names of those latin letters (at least some of them) also have ordinal numerals derived from them. I believe it's informal and used only in spoken language and still it sounds funny . For example:
i-тый (итый)
j-тый (житый)
k-тый (катый)

Originally Posted by Friendy

Originally Posted by tyomitch

Originally Posted by Ramil

Originally Posted by kalinka_vinnie

y = игрек?

Latin alphabet is used, not an English one. And letter names are Latin also.
so g = же, h = аш, j = йот, y=игрек, x = икс (не экс)

Неоднократно слышал вариант "жи".

Yes, I encountered "жи" much more often.
Edit: The names of those latin letters (at least some of them) also have ordinal numerals derived from them. I believe it's informal and used only in spoken language and still it sounds funny . For example:
i-тый (итый)
j-тый (житый)
k-тый (катый)

Aren't these more French names

Аш especially is the French name of the letter H
И грек is the French name for Y (lit. Greek I)
G = жэ is French again
J = Жи = French
Икс is the French name for X.

I think you use the French names and not the latin names.

E.g. in Latin the letter H is called Haca, or hic or something.

Yes, it's probably a mixture of French and Latin ("c" is "це" and not "се" like in French) Another difference from French is that it's Игрек in Russian while in French the stress is (naturally) on the last syllable. Here is the Latin alphabet with Russian pronunciation of the letters: http://www.asu.ru/departments/philology ... 01-1.shtml

Originally Posted by Friendy

Yes, it's probably a mixture of French and Latin ("c" is "це" and not "се" like in French) Another difference from French is that it's Игрек in Russian while in French the stress is (naturally) on the last syllable.
...

Most of the French words have the stress on the last syllable. You're right about "c", it's not French but German. This is how they pronounce it when they say the alphabet or spell a word.

Originally Posted by TATY

Aren't these more French names

Аш especially is the French name of the letter H
И грек is the French name for Y (lit. Greek I)
G = жэ is French again
J = Жи = French
Икс is the French name for X.

I think you use the French names and not the latin names.

E.g. in Latin the letter H is called Haca, or hic or something.

Correct, these are pronounced more or less the same way in French.

Originally Posted by Spiderkat

Originally Posted by Friendy

Yes, it's probably a mixture of French and Latin ("c" is "це" and not "се" like in French) Another difference from French is that it's Игрек in Russian while in French the stress is (naturally) on the last syllable.
...

Most of the French words have the stress on the last syllable. You're right about "c", it's not French but German. This is how they pronounce it when they say the alphabet or spell a word.

Originally Posted by TATY

Aren't these more French names

Аш especially is the French name of the letter H
И грек is the French name for Y (lit. Greek I)
G = жэ is French again
J = Жи = French
Икс is the French name for X.

I think you use the French names and not the latin names.

E.g. in Latin the letter H is called Haca, or hic or something.

Correct, these are pronounced more or less the same way in French.

Yeh, cos these aren't the Latin pronunciations. These are only found in French (as a collection).

On a related note: how are high order derivatives (e.g. d2f/dx2) pronounced in English?
In Russian, it's дэ два эф по дэ икс дважды, IMSMW.

dee two eff
dee eks two

d two f by d x squared

d squared f by d x squared

I've never heard the equivalent of "by d x two".

Originally Posted by Seventh-Monkey

d two f by d x squared

d squared f by d x squared

I've never heard the equivalent of "by d x two".

Silly me.

[quote=Chuvak]x

[quote=basurero][quote=Chuvak]x