SYMBOL MEANING = is equal to
; q6 L/ D) o, m8 G' R, {( z$ c1 y ≠ is not equal to
6 o2 r% l1 z/ Y+ s: u ≈ is approximately equal to* ^6 |) P3 {" `5 z6 s4 V
＞ is greater than S8 ?# g. L5 b/ p* e8 R0 L
≥ is greater than or equal to( g' u3 L! F- Y' E% h( ~
＜ is less than- `1 J8 r: L' S* V
≤ is less than or equal to r& R7 b. F" ~) Z: o2 J, Z
根号 square root9 z+ [- o7 Q+ u) d" ]
0.888888… the repeating decimal$ ?! `) I1 A( c2 y/ M
r s't" r degrees s minutes t seconds
' \! E: e8 z4 x/ O! d8 D. \ ∠angle
: f8 v/ i" n$ P) ^ ∟ right angle
+ J* W N, L( k2 A G0 A# T+ s ┻ is perpendicular
3 ^" ?5 v3 Y, z8 j& Q' j │x│ absolute value of x
& y: V, p7 g/ k" G" i ∥ is parallel to
! {/ J0 _! Q/ F$ T8 ^2 _8 Q △ triangle! _; I$ t/ X: q: k' t/ F6 g
～ is similar to
/ Z$ { Z1 D) J, R% `! H! F3 f1 G ≌ is congruent to
2 k# P6 x$ G# M( L! J4 P+ X$ {$ R* g, T △x delta x1 i7 m, K Y. D
π pi(3.1415…)
+ B( O. [' t! B5 O5 m 1. is equal to; is the same as" E+ u$ |* z+ l. j3 |3 }& C9 e
the result is; yields; gives =
, u6 Q: i6 V ? v" S 2. the sum of x and y; the total of x and y;
9 W7 V7 Q8 M& F) k% f x added to y; x increased by y; x+y- e) U) K( G, ^( ^# W
x more then y; x greater than y
9 J+ W9 _+ n% X! X8 w 3. x minus y; x less y;$ y! @" g/ t t
the difference of x and y; x take away y;
( ]9 u! c. l6 P( W. C from x subtract y' x decreased by y; x-y
" t6 v" e- J& E3 ]) t4 | x diminished by y; y is subtracted from x;5 K! L5 P+ u% X% @# a5 H5 g. H+ V
y less than x (note the reversal)
7 o# q8 R5 U2 o5 g) k7 U0 ^- e 4.x multiplied by y;5 Y2 O8 u! B5 m
the product of x and y; xy
2 }: n& o# F' ?: c8 \6 w 5. divided by y;
4 m7 e4 y; F' Z& [ the quotient of x and y; x y,
0 Q8 a/ F/ a7 i9 l+ m* l- d y divided into x (note the reversal), s; x: A5 o7 d: z' i8 t
6.A and B are factors of C;( x! r3 f8 a$ h5 C8 X
A and B are divisors of C;" }1 _! h8 c/ I4 N9 H/ r% W
C is divisible by A and by B; A B=C6 ~% i- T7 d9 z- R( z# }
C is a multiple of A and of B;1 E. |1 W5 [5 F+ d' t @
A divides C and B divides C;' y* F3 i1 S8 p2 w+ \9 t
7. the ratio of a to b a:b,4 R+ c$ K# K' y6 H
8. reciprocal of x 1/x* m$ s9 \ c4 D6 o" o! d
9. x times as many z as y; z=x y9 y' k. L ^& g
10.a squared;9 g% u! D1 `5 H% O; Z, L) E9 _% X5 H
a to the second power a28 L0 q$ i5 R+ o# z: ?3 Y$ |
11. a cubed; a3
: O: O: A0 D6 F a to the third power2 j. q3 F$ ?- i
12. between a and b (a,b)
) _, a" h5 U: a between a and b, inclusive [a,b]+ p* d X3 l" M7 X
( h( n) n$ V& g" q
13. off 低于，从……中扣除 |
发表于 2012-8-15 12:55:17
楼主