Математические символы

+ plus

– minus

plus or minus

multiply by

divide by

is equal to

is identically equal to

is approximately equal to

is not equal to

is greater than

is less than

is greater than or equal to

is less than or equal to

intersection

union

is member of set

is a subset of

there exists

for all values of

is equivalent to; if and only if

implies

empty set

E universal set

N the set of natural numbers

Z the set of integers

Q the set of rational numbers

R the set of real numbers

C the set of complex numbers

angle

parallel

perpendicular

xⁿ xxx… to n factors

the square root of x

the n^th root of x

x a x approaches the limit a

x! factorial x

infinity

log_n x log x to the base n

lg x common logarithm

ln x natural logarithm

the sum of the terms

П the product of the terms

|x| the absolute value of x

f(x), F(x) etc. value of function f, F etc. at point x

x the increment of x

the derivative of y with respect to x

the n^th derivative of y with respect to x

integral

Vulgar fractions (proper, improper, mixed): is one fifth,

1 is the numerator; 5 is the denominator.

3Three and five eighths

Decimal fractions: 0.2 is two tenths = nought point two = point two = zero point two

52.23 is fifty two and (point) two three.

приложение 6

Некоторые неметрические единицы измерения

Единица измерения		Сокращение	Значение в метрических единицах
Наименование
inch	дюйм	in, "	25.4 mm
mile	миля	MI, mi	1609.344 m
foot	фут	Ft, '	304.8 mm
ounce (UK)	унция	oz. liq (UK)	28.41310 cm3
yard	ярд	Yd	914.4 mm
acre	акр	Ac	4046.875 m2
barrel (petr.)	баррель	Bbl	0.158987 m3
gallon (UK)	Британский галлон	Imp. Gal	4.54609 dm3
pint (UK)	Британская пинта	Pt (UK)	0.568261 dm3
pound	фунт	lb	0.453592 kg

приложение 7

Словари, рекомендуемые для перевода научно-технических текстов

1. Большой англо-русский политехнический словарь: В 2 т. Около 200 000 терминов/ С.М. Баринов, А.Б. Борковский и др.. – М.: Рус. яз., 1991.

2. Большой англо-русский словарь: В 2 т. Около 150 000 терминов/ Сост. Н.Н. Амосова, Ю.Д. Апресян, И.Р. Гальперин и др. – М.: Рус. яз., 1979.

3. Русско-английский политехнический словарь. Около 90 000 терминов/ Сост. Б.В. Кузнецов и др. – М.: Руссо, 1997.

4. Multilex 2.0. CD ROM, 1997 (электронный словарь)

5. Lingvo 6.0 CD ROM, 1999 (электронный словарь)