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汉语拼音：hán shù

在某一变化过程中，两个变量x、y，对于x的每一个值，y都有唯一的值和它对应，y就是x的函数。这种关系一般用y=f（x）来表示。其中x叫做自变量，y叫做因变量。

• The value of the complement of the secant is called the cosecant.

  正割函数的倒数，称为余割函数。

• Now, let's return to the factorial function.

  现在，让我们回到阶乘函数上来。

• In a nonautonomous system, f is explicitly a function of t.

  在非自主的系统中, f是t的显函数.

• The displacement function must not have any preferred direction.

  位移函数不准有任何优先用法.

• A tabulation of a function of two variables is cumbersome, but possible.

  二元函数的列表法是不方便的, 然而是可能的.

• We then go ahead with no restrictions on the valenceelectron trial functions.

  于是我们继续做下去,对价电子的尝试函数不加什么限制.

• We shall take a closer look at the concept of functional dependence.

  我们将周密地考虑一下函数相关的概念.

• Generating functions are an ideal tool for studying sequences defined by recurrence.

  母函数是研究用递推关系来确定的函数的最理想工具.

• The spring constant is replaced by the weighting function.

  弹簧常数用权重函数代替.

• In thermodynamics we usually deal with functions of two or more variables.

  在热力学中,我们经常涉及两个或更多变量的函数.

• If we allow this, then the wavefunction x will also be complex.

  如果允许这种情况出现, 则波函数X也都是复数.

• These should be four undetermined constants in the displacement function.

  位移函数中应有四个未定常数.

• It can always be arranged that degenerate eigenfunctions are orthogonal.

  总可以做到使得简并的本征函数是正交的.

• The conductance is a function of the temperature and the pressure.

  电导是温度和压力的函数.

• For this reason they are often referred to as'spin wavefunction '.

  由于这个原因,常把他们称作 “ 自旋波函数”.