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| 4.1 ¼¸ºÎ·ûºÅ |
| ·ûºÅ | ÒâÒå»ò¶Á·¨ | ±¸×¢¼°Ê¾Àý |
| [Ö±]Ïß¶ÎAB the line segment AB | ÓÃ|AB|,AB»òСдµÄÀ¶¡×Öĸ±íʾ¸ÃÖ±Ï߶εij¤ | |
| ¡Ï | [Æ½Ãæ]½Ç plane angle | ¡¡ |
| »¡AB the arc AB | ||
| ¦Ð | Ô²ÖÜÂÊ ratio of the circumference of a circle to its diamenter | Ô²Öܳ¤ÓëÖ±¾¶µÄ±È,¦Ð=3.141 592 6¡ |
| ¡÷ | Èý½ÇÐÎ triangle | ¡¡ |
| ƽÐÐËıßÐÎ parallelogram | ¡¡ | |
| ¡Ñ | Ô² circle | ¡¡ |
| ¡Í | ´¹Ö± is perpendicular to | ¡¡ |
| ¡Î,¡¬ | ƽÐÐ is parallel to | ¨mÓÃÓÚ±íʾƽÐÐÇÒÏàµÈ |
| ¡× | ÏàËÆ is similar to | ¡¡ |
| È«µÈ is congruent to | ¡¡ |
| ×¢:ÐÐÎÄÖз½À¨ºÅÄÚµÄÎÄ×Ö¿ÉÒÔÂÔÈ¥»ò²»¶Á,ÏÂͬ¡£ |
¡¡
| 4.2 ÔÓÀà·ûºÅ |
|
·ûºÅ |
×÷ÓÃ |
ÒâÒå»ò¶Á·¨ |
±¸×¢¼°Ê¾Àý |
|
= |
a=b |
aµÈÓÚb, a is not equal to b | ¡ÔÓÃÀ´Ç¿µ÷ÕâÒ»µÈʽÊÇÊýѧÉϵĺãµÈ[ʽ] |
|
¡Ù |
a¡Ùb |
a²»µÈÓÚb, a is not equal to b | |
|
|
a |
°´¶¨ÒåaµÈÓÚb»òaÒÔbΪ¶¨Òå a is definition equal to b |
Àý:p ʽÖÐpΪ¶¯Á¿,mΪÖÊÁ¿,¦ÍΪËÙ¶È,Ò²¿ÉÓà |
|
|
ab |
aÏ൱ÓÚb£¬a is approximately equal to b | ÀýÈçÔÚµØÍ¼Éϵ±1cmÏ൱ÓÚ10kmʱ,¿Éд³É1cm |
|
¡Ö |
a¡Öb |
aÔ¼µÈÓÚb£¬ a is approximately equal to b | ·ûºÅ |
|
¡Ø |
a¡Øb |
aÓëb³ÉÕý±È£¬a is proportional to b | ¡¡ |
|
¡Ã |
a¡Ãb |
a±Èb, ratio of a to b | |
|
¡´ |
a¡´b |
aСÓÚb, a is less than b | ¡¡ |
|
¡µ |
b¡µa |
b´óÓÚa, b is greater than a | ¡¡ |
|
¡Ü |
a¡Üb |
aСÓÚ»òµÈÓÚb a isless than or equal to b |
²»ÓèQ |
|
¡Ý |
b¡Ýa |
b´óÓÚ»òµÈÓÚa b is greater than or equal to a | ²»ÓèR |
|
¡¶ |
a¡¶b |
a ԶСÓÚb, a is much less than b | ¡¡ |
|
¡· |
b¡·a |
bÔ¶´óÓÚa£¬ b is much greater than a | ¡¡ |
|
¡Ø |
ÎÞÇî[´ó]»òÎÞÏÞ[´ó], infinity | ¡¡ | |
|
¡« |
a¡«b |
Êý×Ö·¶Î§ the range of numbers | ÕâÀïµÄaºÍbΪ²»Í¬µÄʵÊý,ÀýÈç5¡«10±íʾÓÉ5ÖÁ10 |
|
¡¤ |
13.59 |
СÊýµã decimal point | ÕûÊýºÍСÊýÖ®¼äÓô¦ÓÚÏ·½Î»ÖõÄСÊýµã¡°.¡±·Ö¿ª |
|
¡¤¡¤ |
|
Ñ»·Ð¡Êý circulator | ¼´£º3.123 823 82¡ |
|
% |
5%¡«10% |
°Ù·ÖÂÊ percent | ¡«Ç°µÄ%²»Ó¦Ê¡ÂÔ |
|
£¨£© |
¡¡ | Ô²À¨ºÅ parentheses | ¡¡ |
|
[] |
¡¡ | ·½À¨ºÅ square brackets | ¡¡ |
|
£û£ý |
¡¡ | »¨À¨ºÅ braces | |
|
< > |
¡¡ | ½ÇÀ¨ºÅ angle brackets | ¡¡ |
|
¡À |
¡¡ | Õý»ò¸º positive or negative | ¡¡ |
|
|
¡¡ | ¸º»òÕý negative or positive | ¡¡ |
|
max |
¡¡ | ×î´ó maximum | ¡¡ |
|
min |
¡¡ | ×îС minimum | ¡¡ |
¡¡
| 4.3º¯Êý·ûºÅ |
|
·ûºÅ,Ó¦Óà |
ÒâÒå»ò¶Á·¨ |
±¸×¢¼°Ê¾Àý |
|
f |
º¯Êýf function f |
Ò²¿ÉÒÔ±íʾΪx| ¡úf(x) |
|
f(x) |
º¯ÊýfÔÚx»òÔÚ(x,y,¡)µÄÖµ, value of the functionat f at x or at(x,y,¡) respectively |
Ò²±íʾÒÔx,y,¡Îª×Ô±äÁ¿µÄº¯Êýf |
|
|
f(b)- f(a) |
ÕâÖÖ±íʾ·¨Ö÷ÒªÓÃÓÚ¶¨»ý·Ö¼ÆËã |
|
x¡úa |
xÇ÷ÓÚa, x tends to a |
ÓÃxa¡úa±íʾÐòÁУûxn£ýµÄ¼«ÏÞΪa |
|
|
xÇ÷ÓÚaʱf(x)µÄ¼«ÏÞ limit of f(x) as x tends to a |
limx¡úaf(x)=b¿ÉÒÔдΪ: f(x)¡úb µ±x¡úa ÓÒ¼«ÏÞ¼°×ó¼«ÏÞ¿É·Ö±ð±íʾΪ:limx¡úa+f(x)ºÍlimx¡úa-f(x) |
|
|
½¥½üµÈÓÚ,is asymptotically equal to | Àý:
1/sin(x-a) |
¡¡
| 4.4Ö¸Êýº¯ÊýºÍ¶ÔÊýº¯·ûºÅ |
|
·ûºÅ,±í´ïʽ |
ÒâÒå»ò¶Á·¨ |
±¸×¢¼°Ê¾Àý |
|
ax |
xµÄÖ¸Êýº¯Êý(ÒÔaΪµ×) exponential function (to the base a) of x |
¡¡ |
|
e |
×ÔÈ»¶ÔÊýµÄµ× base of natural logarithms |
¡¡ =2.7182818¡ |
|
ex,exp x |
xµÄÖ¸Êýº¯Êý(ÒÔeΪµ×) exponential function (to the base e) of x |
ÔÚͬһ³¡ºÏÖÐ,Ö»ÓÃÆäÖÐÒ»ÖÖ·ûºÅ |
|
loga x |
ÒÔaΪµ×µÄxµÄ¶ÔÊý logarithm to the base a of x |
µ±µ×Êý²»±ØÖ¸³öʱ,³£ÓÃlog x±íʾ |
|
ln x |
ln
x=logex , nµÄ×ÔÈ»¶ÔÊý natural logarithm of x |
log x²»ÄÜÓÃÀ´´úÌæln x,lg x,lb x»òlogex,log10x,log2x |
|
lg x |
lg
x=log10x , xµÄ×ÔÈ»¶ÔÊý common (decimal) logarithm of x |
¡¡ |
|
lb x |
lb
x=log2x , xµÄÒÔ2Ϊµ×µÄ¶ÔÊý hmary logarithm of x |
¡¡ |
¡¡
| 4.5Èý½Çº¯ÊýºÍË«Çúº¯Êý·ûºÅ |
|
·ûºÅ,±í´ïʽ |
ÒâÒå»ò¶Á·¨ |
±¸×¢¼°Ê¾Àý |
|
sin x |
xµÄÕýÏÒ sine of x | ¡¡ |
|
cos x |
xµÄÓàÏÒ cosine of x | ¡¡ |
|
tan x |
xµÄÕýÇÐ tangenft of x |
Ò²¿ÉÓÃtg x |
|
cot x |
xµÄÓàÇÐ cotangent of x |
cot x=1/tan x |
|
sec x |
xµÄÕý¸î secan of x |
sec x=1/cos x |
|
cscx |
xµÄÓà¸î cosecant of x | Ò²¿ÉÓÃcosec x »ò csc x=1/sin x |
|
sinm x |
sin xµÄm´Î·½ sin x to the power m | ÆäËûÈý½Çº¯ÊýºÍË«Çúº¯ÊýµÄm´Î·½µÄ±íʾ·¨ÀàËÆ |
|
arcsin x |
x µÄ·´ÕýÏÒ arc sine of x | y=arcsin x ·´ÕýÏÒº¯ÊýÊÇÕýÏÒº¯ÊýÔÚÉÏÊöÏÞÖÆÏµķ´º¯Êý |
|
arccos x |
xµÄ·´ÓàÏÒ arc cosine of x | y=arccos x ·´ÓàÏÒº¯ÊýÊÇÓàÏÒº¯ÊýÊýÔÚÉÏÊöÏÞÖÆÏµķ´º¯Êý |
|
arctan x |
x µÄ·´ÕýÇÐ arc tangent of x | Ò²¿ÉÓÃarctg x¡£ y=arctan x ·´ÕýÇк¯ÊýÊÇÕýÇк¯ÊýÔÚÉÏÊöÏÞÖÆÏµķ´º¯Êý |
|
arccot x |
x µÄ·´ÓàÇÐ arc cotangent of x | y=arccot x ·´ÓàÇк¯ÊýÊÇÓàÇк¯ÊýÔÚÉÏÊöÏÞÖÆÏµķ´º¯Êý |
|
arcsec x |
x µÄ·´Õý¸î arc secant of x | y=arcsec x ·´Õý¸îº¯ÊýÊÇÕý¸îº¯ÊýÔÚÉÏÊöÏÞÖÆÏµķ´º¯Êý |
|
arccsc x |
x µÄ·´Óà¸î arc cosecant of x | Ò²¿ÉÓÃarccosec x¡£ y=arccsc x ·´Óà¸îº¯ÊýÊÇÓà¸îº¯ÊýÔÚÉÏÊöÏÞÖÆÏµķ´º¯Êý¡£ ¶ÔÓÚ11-8.8ÖÁ11-8.13¸÷Ïî²»²ÉÓÃsin-1x,cos-1x,µÈ·ûºÅ£¬ÒòΪ¿ÉÄܱ»Îó½âΪ(sin x)-1£¬(cos x)-1 |
|
sinh x |
x µÄË«ÇúÕýÏÒ hyperbolic sine of x | Ò²¿ÉÓÃsh x |
|
cosh x |
x µÄË«ÇúÓàÏÒ hyperbolic cosine of x | Ò²¿ÉÓÃch x |
|
tanh x |
x µÄË«ÇúÕýÇÐ hyperbolic tangent of x | Ò²¿ÉÓÃth x |
|
coth x |
x µÄË«ÇúÓàÇÐ hyperbolic cotangent of x | coth x=1/tanh x |
|
sech x |
x µÄË«ÇúÕý¸î hyperbolic secant of x | sech x=1/cosh x |
|
csch x |
x µÄË«ÇúÓà¸î hyperbolic cosecant of x | Ò²¿ÉÓÃcosech x , csch x=1/sinh x |
|
arsinh x |
x µÄ·´Ë«ÇúÕýÏÒ inverse hyperbolic sine of x | Ò²¿ÉÓÃarsh
x y=arcsinh x ·´Ë«ÇúÕýÏÒº¯ÊýÊÇË«ÇúÕýÏÒº¯ÊýµÄ·´º¯Êý |
|
arcosh x |
x µÄ·´Ë«ÇúÓàÏÒ inversr hyperbolic cosine of x | Ò²¿ÉÓÃarch x y=arcosh x ·´Ë«ÇúÓàÏÒº¯ÊýÊÇË«ÇúÓàÏÒº¯ÊýÔÚÉÏÊöÏÞÖÆÏµķ´º¯Êý |
|
artanh x |
x µÄ·´Ë«ÇúÕýÇÐ inverse hyperbolic tangent of x |
Ò²¿ÉÓÃarth x y=artanh x ·´Ë«ÇúÕýÇк¯ÊýÊÇË«ÇúÕýÇк¯ÊýµÄ·´º¯Êý |
|
arcoth x |
x µÄ·´Ë«ÇúÓàÇÐ inverse hyperbolic cotangent of x |
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