中學生數(shù)學符號感的培養(yǎng)-資料下載頁
2024-10-14 02:54本頁面
【正文】 ??⊿?℃指數(shù)0123：o123上述符號所表示的意義和讀法（中英文參照）＋plus 加號；正號－minus 減號；負號177。plus or minus 正負號is multiplied by 乘號247。is divided by 除號＝is equal to 等于號≠ is not equal to 不等于號≡ is equivalent to 全等于號≌ is approximately equal to 約等于≈ is approximately equal to 約等于號＜is less than 小于號＞is more than 大于號≤ is less than or equal to 小于或等于≥ is more than or equal to 大于或等于％per cent 百分之…∞ infinity 無限大號√(square)root平方根X squared X的平方X cubed X的立方∵ since。because 因為∴ hence 所以∠ angle 角? semicircle 半圓? circle 圓○ circumference 圓周△ triangle 三角形? perpendicular to 垂直于∪ intersection of 并，合集∩ union of 交，通集∫ the integral of …的積分∑(sigma)summation of 總和176。degree 度′ minute 分〃second 秒＃number …號＠ at 單價第五篇：數(shù)學符號英語翻譯 ? ? there exist for allp?q p implies q / if p, then qp?q p if and only if q /p is equivalent to q / p and q are equivalent 集合x∈A x belongs to A / x is an element(or a member)of A x?A x does not belong to A / x is not an element(or a member)of AA?B A is contained in B / A is a subset of B A?B A contains B / B is a subset of A A∩B A cap B / A meet B / A intersection B A∪B A cup B / A join B / A union B AB A minus B / the diference between A and BAB A cross B / the cartesian product of A and B numbers x+1 x1 x177。1 xy x plus one x minus one x plus or minus one xy / x multiplied by yx minus y, x plus y(xy)(x+y)= x=5 x≠5 the equals signx equals 5 / x is equal to 5 x(is)not equal to 5x≡y x is equivalent to(or identical with)y xy x≥y xx is greater than or equal to y x is less than y x≤y x is less than or equal to yzero is less than x is less than 1zero is less than or equal to x is less than or equal to 1 0x squared / x(raised)to the power 2 x cubedx to the fourth / x to the power 4 x to the nth / x to the power n x to the(power)minus n(square)root x / the square root of xcube root(of)x fourth root(of)x nth root(of)x x的三次根 x的四次根 x的n次根(x+y)2 x plus y all squared n!x^ x175。 x? xi n factorial x hat x bar x tildexi / x subscript i / x suffix i / x sub i∑(i=1~n)ai the sum from i equals one to n ai / the sum as i runs from 1 to n of the ai algebra‖x‖ the norm(or modulus)of x OA→ OA / vector OA 這里應該是寫在字母上的一短杠OA175。 OA / the length of the segment OA 同上，長杠 AT A?1 A transpose / the transpose of A A inverse / the inverse of A f(x)fx / f of x / the function f of xf:S→T a function f from S to Tx→y x maps to y / x is sent(or mapped)to yf’(x)f prime x / f dash x / the(first)derivative of f with respect to xf”(x)f doubleprime x / f doubledash x / the second derivative of f with respect to x f”’(x)tripleprime x / f tripledash x / the third derivative of f with respect to x f(4)(x)f four x / the fourth derivative of f with respect to x 4應該是上角標?f/?x1 the partial(derivative)of f with respect to x1 ?2f/?x12 ∫0∞ the second partial(derivative)of f with respect to x1the integral from zero to infinitylimx→0 the limit as x approaches zerolimx→0+ the limit as x approaches zero from above limx→0? the limit as x approaches zero from belowlogey log y to the base e / log to the base e of y / natural log(of)y lny log y to the base e / log to the base e of y / natural log(of)y
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