Unit 1.Ordinal and relation signs

Look through the table and try to memorize it.

signs

reading

examples

1.

Firstly; or: in the first place

2.

Secondly; or in the second

place

.

Point; or: decimal point

…

And so on to

1, 2, 3… 25 (read: one, two, three

and so on to twenty five

Λ ∞

And so on to infinity

1, 2, 3… (read: one, two, three and

so on to infinity

Θ

I: since, because

x1

x one, or : x sub one

x → ∞

x approaches infinity or: x

tends to infinity

=

is equal to, or: does not equal

a=b; a equals b or: a is equal to ; or:

a is b

≠

is not equal to; or: does not

a ≠ b ; a does not equal b; or: a is not

equal

equal to b; or: a is not b

α , ~

(is) directly proportional to

p~ q

≈

approximately equals

a=b;

~

or : is approximately equal to

a approximately equals b,

or ; a is approximately equal to b

::

as (in proportions)

p:q :: s:t, read p(is) to q as s (is) to t

≡

Is identical with, or is always

F(x)= 0 f of x(is) identical with zero

equal to

(

)

Parentheses; or : round

brackets

[

]

Brackets; or: square brackets

{ }

braces

<

(is) less than

p<q; p (is) less than q

>

(is) greater than

p>q; p (is) greater than q

≤

(is) not greater than

p, q stands for p=x=q

>

(is) greater than of equals

The closed interval p q stands x not

/

less than

≥

(is) not greater than of equals

a ≥ b a (is) greater than or equals b

</,≥,≥

(is) not less than

a ≥ b; a ≥ b';a </ b; a is not less than b

ordinal sign

[`O:dInl `saIn]

простой знак

relation sign

[rI`leIS(q)n `saIn ]

знак соотношения

point;

[poInt]

точка

decimal

[`desIm(q)l]

n. десятичная дробь,

[`desIm(q)l poInt]

a десятичный

decimal point

точка, отделяющая

десятичную дробь от

целого числа

(соответствует запятой в

[In`fInItI]

русском языке)

infinity

бесконечность

approximately

[q`prOks(I)mItlI]

приблизительно

proportion

[prq`pO:Sqn]

пропорция,

количественное

соотношение,

пропорциональность,

[prq`pO:Sqnl]

часть, доля

proportional

пропорциональный

identical with

[aI`dentIk(q)l wID]

соответствующий чему -

[`raund `brxkIts]

либо

round brackets /

круглые скобки

parentheses

[pq`renTIsI:z]

square brackets / brackets

[`skwFq `brxkIts]

квадратные скобки

braces

[`breIsIz]

фигурные скобки

is equal to, equals

[`I:kw(q)l]

равно, равняется

less than

[les Dxn]

меньше чем

greater than

[`greItq Dxn]

больше чем

since

[sIns]

так как,

approach / tend

[q`prouC] [tend]

достигать значения;

приближаться, стремиться

1.1.2 Read the following signs:

•

[ ]

•

x → ∞

•

p:q :: s:t

•

a>b

•

50,150,1500Λ ∞

•

s </ t

•

d + b </ a

•

y1