.


:




:

































 

 

 

 





+ addition, plus, positive
  item
  total ; ; ;
subtraction, minus, negative
  minuend
  subtrahend
plus or minus
´ multiplication sign, multiplied by, times also indicated by placing a dot between the factors (64= 24) or by writing the factors one after the other without explicitly indicating multiplication (4abc) , ...
  multiplicand
  multiplier, factor
¸ : division, divided by, is to; also indicated by writing the divisor under the dividend with a line between () or by writing the divisor after the dividend with an oblique line between (3/8) ; ;
  dividend
  divisor
  quotient
  numerator
  denominator
E times 10 raised to an indicated exponent (4.52E5= 4.52´105) used esp. in calculator and computer displays
= equals, (is) equal to
¹ is not equal to
is approximately equal to
approaches
> is greater than
< is less than
³ is greater than or equal
is less than or equal to
is identical with
varies directly as; is proportional to
therefore
infinity
|| is parallel to
^ is perpendicular to
Ð angle
Ø right angle
square ;
round; circle ;
() parentheses
[] brackets ( )
{} braces
m micron (0,001 )
degree (s) ()
% per cent
¢ minute(s); foot, feet (); ()
² second(s); inch(es) (); ()
A prime A
A double prime (triple prime) A ( )
sub one
sub a a
N number ; ,
No(s) number(s) ()
& and
&c et cetera; and so on, and so forth ;
the absolute value of z z
4! factorial 4 the factorial of 4 4
0,1,2, etc. used as exponents placed above and at the right of an expression to indicate that it is raised to a power whose degree is indicated by the figure
involution
raise to power
exponent
x squared, x cube ; x
x to the power n n
rootused without a figure to indicate a square root or with an index above the sign to indicate a higher degree (as in ); also denoted by a fractional index at the right of a number whose denominator expresses the degree of the root ()
  evolution
  radical sign
square root of a
cube root of a
n th root of x n - x
dx differential of x ()
dy/dx derivative of with respect to x
f (x), F (x) function of x
f-1 (x) the inverse of the function f (x) , f (x)
, the first, second derivatives of the function f (x) , f (x)
integral; integral of
the integral taken from the value b to the value a b
the derivative of the function f (x) with respect to x f (x) x
the partial derivative of the function f (x,y) with respect to x f (x,y) x
s standard deviation of a sample taken from a population
standard deviation of a population
sum; summation ( x 1+ x 2++ x n)
arithmetic mean of a sample of a variable x () x
(1) micrometer; (2) arithmetic mean of a population
or variance
chi-square -
E (x) expected value of the random variable x x
the limit of f of x as x approaches 0 f x x, 0
sin x sine of x x
cos x cosine of x x
tan x (tg x) tangent of x ( - tan x) x ( - tg x)
cot x (ctg x) cotangent of x ( - cot x) x ( ctg x)
sin-1 x, arcsin x inverse sine of x ( )
sinh x hyperbolic sine of x ( ) x
product ( = x 1 x 2 x n)
matrix with element aij in the i- th row and j -th column aij i - j -
determinant of a square matrix with elements aij A
norm of the matrix A A
A-1 inverse of the matrix A , A
AT transpose of the matrix A A
or: such that (choose a and b a + b = 6) ,
there exists ( a a + 2=4)
for every, for all ( a is a real number, ) ;
union of two sets
intersection of two sets
is included in, is a subset of ;
contains as a subset
is an element of
is not an element of

a + b = c a plus b equals a plus b is equal to a plus b is (makes)
a b = b from a is (leaves)
ab = c a multiplied by b equals a times b is a multiplied by b equals
: b = a divided by b is equal to
a / b The ratio of a to b
/ b = c / d a is to b as is to d
x=k / y x varies inversely as y; x is inversely proportional to y
a to the power b
a squared
The square root of a is b
The product of the sum and difference of two quantities is equal to the difference of their squares.
a plus b over a minus b is equal to plus d over minus d
a cubed is equal to the logarithm of d to the base
  the integral of f of s and of s, with respect to s from to t
The second derivative of with respect to s, plus times the quantity 1 plus b of s, is equal to zero
x sub a minus b is equal to c
f of x is equal to sub ab
the second partial derivative of u with respect to t equals zero
a Î A a belongs to A capital
AÌB A is contained in B
BÉC B contains C
The union of A and A prime
The number a is less than b sub n or equal to b sub n
The module (the absolute value) of x is less than n
The set Y contains the unique element y
y tends to infinity or y is tending to infinity
The sine of y is equal to h
The limit of the cosune of is equal to one
The absolute value of b to the n is less than
The function x sub 2 of x and y is equal to 0
[ m,n ] The segment whose origin and terminus are the points n and m
The difference of the set B and the finitr set consisting of the elements Y sub zero and so on, Y sub n minus 1




:


: 2016-10-06; !; : 453 |


:

:

, .
==> ...

1367 - | 1179 -


© 2015-2024 lektsii.org - -

: 0.008 .