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.. Ante Christum .

alternating current

a.m. ante meridiem .

B.C. before Christ

BTU British Thermal Unit -

Centigrade ( )

cubic centimetre

cckw counter clockwise

cwt hundredweight ; (50,8 45,3 )

dc direct current

deg. degree

e.g. exsempli gratia .

e.m.f. electromotive force

etc. et cetera - . ..

Fahr. (F) Fahrenheit

f.p.s feet per second

ft. foot; feet ()

gal. gallon

gr gram(me)


h (hr) hour

hp horsepower

i.e. id est .

kv kilovolt

kva kilovolt-ampere -

kw kilowatt

lb libra pound .

m metre ; mile ; minute

mm millimetre

m.p.h. miles per hour

p. page

p.c. pro centum . per cent

p.m. post meridiem .

psi pounds per square inch

R Reaumur

r.p.m. revolutions per minute

r.p.s. revolutions per second

sq. square

t. temperature ; ton

viz videlicet .

vs versus .

v.v. vice versa .

w watt



9


+ plus

minus

plus or minus

= is equal to, equals

* does not equal

S identical, identically equal to

~ equivalent, similar (is similar to)

> is greater than

< is less than

-> approaches

Oo varies as, is propotional to

Oo infinity

ab a times b; a multiplied by b

a/b the ratio of a to b; a divided by b

proportion: a is to b as is to d

an the -th power of a; aaa... to n factors

J~ radical sign

yfa square root of a

a~n the reciprocal of an\ \/an

log a common logarithm of a

log 10 a logarithm of a to the base 10

In a natural logarithm of a

F(x), f(x) function of x

= f(x) is a function of x

the derivative of

Dydf(x)

dx with respect to x £ the second derivative of dx2 with respect to x a' lei] prime, dash

dx'


fl"[ei] second, double prime, double dashed

an [ei] sub n, subscribed n

\ integral sign

double integral

() parentheses

[ ] brackets

{ } braces

LCM (1cm) least common multiple

GCD (gcd) greatest common divisor

Z angle

L right angle

J_ perpendicular (is perpendicular to)

| | parallel (is parallel to)

triangle

parallelogram

□ square

circle

arc; (arc AB)

0 degrees (of arc or angle)

' minutes of arc or angle; foot, feet

" seconds (of arc or angle); inches

sin A sine of A

cos A cosine of A

tan A tangent of A

cot A (or ctn A) - cotangent of A

sec A secant of A

cosec A (or esc A) cosecant of A



A few examples of reading mathematical expressions

Arithmetic


Addition 12 + 13 = 25 Twelve plus thirteen is (masks equals) twenty-five addend sum

Subtraction 71 24 = 47 Seventy one minus twenty four is (equals) forty-seven

minuend subtrahend remainder, difference -


Multiplication 8 x 6 = 48 Six times eight is forty-eight (eight multiplied by six is forty-eight) multiplicant multiplier (factor) product

Division 90: 9 = 10 Ninety divided by nine is ten

divident divisor quotient


 


Fractions Decimal fractions 0.4 nought point four (0 [eu]point four)

Common fractions

a half (one second); - a quarter
2 4

(one forth)

2- (2 3 v nator) 5- (5 3 v nator)

Proper fractions

- numerator, 3 denomi-

Improper fractions

- numerator, 3 denomi-

1 2 5s 7- (9 3 9 tor)

Mixed number

common denomina-


0.06 nought point nought six (0 [eu] point 0 [eu] six)

.2 point two (period two, two tenth)

.37 point thirty seven (period thirty-seven)

652.47 six hundred fifty-two point forty seven (six five two point forty-seven)

1.007 one point 0 [eu] 0 [eu] seven


Power


raise to a power

in the second power ,

in the third power ,


in the n-th power -

3 3 cubed (three to the third power)

2 three a to the second power (3 coefficient; a base; 2 exponent)



Evolution

J~ square root (radical sign) ~ cubic root

V4 = 2 the square root of four is

Two

Ratio


H

ratio H per L; H to L

jLi

=f(x) is a. function of x

, the derivative of with

Dx dx

respect to x

d2y

ir the second derivative of

djc2

with respect to x


 

One; a unit single; once





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