string formula

this can be done by passing the value to the string function as in this example: eval(string(formula)); .

这可以像本例中一样通过将值传递给String函数来做到：eval（String（formula））；。

Formula must refer to a single cell or result in a text string.

公式必须引用单个单元格或产生一文字串。

Small ball and light string is one of the application conditions for simple pendulum cycle formula.

摆球为小球、摆绳为轻质绳是单摆周期公式的适用条件之一。

on the basis of the analysis of the twisting vibration of rotary sucher-rod string, a formula of calculating every harmonic vibration eigenfrequency is presented.

在对旋转抽油杆柱的扭转振动分析的基础上，给出了各阶扭转振动固有特性参数的计算式。