feat: update docs
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docs/zh-CN/welcome/release/formulas.md
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# v0.8.1:字段的计算公式插件
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NocoBase 目前提供了两种计算公式插件:
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- `@nocobase/plugin-math-formula-field` Math 公式
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- `@nocobase/plugin-excel-formula-field` Excel 公式(感谢 [azriel46d](https://github.com/nocobase/nocobase/pull/906) 贡献)
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## Math Formula
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基于 [Math.js](https://mathjs.org/) 实现,它具有支持符号计算的灵活表达式解析器,大量内置函数和常量,并提供了集成的解决方案来处理不同的数据类型,例如数字,大数,复数,分数,单位和矩阵。
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```ts
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import { evaluate } from 'mathjs';
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// expressions
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evaluate('1.2 * (2 + 4.5)') // 7.8
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evaluate('12.7 cm to inch') // 5 inch
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evaluate('sin(45 deg) ^ 2') // 0.5
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evaluate('9 / 3 + 2i') // 3 + 2i
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evaluate('det([-1, 2; 3, 1])') // -7
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```
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<img src="./formulas/math-form.jpg" />
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## Excel Formula
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基于 [Formula.js](https://formulajs.info/) 实现,详细用法参考 [Formula.js functions](https://formulajs.info/functions/)。
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```ts
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SUM(-5, 15, 32) // 42
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IF(true, 'Hello!', 'Goodbye!') // Hello!
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```
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<img src="./formulas/excel-form.jpg" />
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