📦 三棱柱体积Triangular Prism Volume

使用说明与常见问题How-to & FAQ

「三棱柱体积」是什么？What is the Triangular Prism Volume tool?

V = (底边 × 高 / 2) × 棱长。本地处理。可设置「底边」、「三角形高」、「棱长」。V = (base × height / 2) × length. Processed locally. Settings: Base, Triangle height, Length.

如何使用「三棱柱体积」？How do I use the Triangular Prism Volume tool?

在「三棱柱体积」中，填写「底边」、「三角形高」、「棱长」等参数，结果会随输入实时计算并显示在下方。In the Triangular Prism Volume: Fill in "Base", "Triangle height", "Length"; results are recalculated instantly as you type.

斜棱柱也适用吗？Does it work for an oblique prism?

本页按直棱柱计算：V = (底 × 三角形高 ÷ 2) × 长度。斜棱柱公式相同，只要长度用两个三角形端面之间的垂直距离。It assumes a right prism: V = (base × triangle height ÷ 2) × length. An oblique prism uses the same formula with the perpendicular distance between the two triangular ends.

能举个计算实例吗？Can you show a worked example?

例如在「三棱柱体积」中填 底边 = 6，三角形高 = 4，棱长 = 10，结果区显示：底面积：12；体积：120For example, entering Base = 6, Triangle height = 4, Length = 10 in the Triangular Prism Volume gives: Base area: 12; Volume: 120

哪些输入会被检查？Which inputs are validated?

「三棱柱体积」会检查这些输入——「底边」、「三角形高」、「棱长」：必须填写，须大于 0；绝对值超过 10¹⁵ 的数也会被拒绝。不符合时结果区显示具体提示，不会给出数字。The Triangular Prism Volume checks its inputs — "Base", "Triangle height", "Length": required, must be greater than 0; numbers above 10¹⁵ in absolute value are rejected too. When a value fails, the result area names the problem instead of showing a number.

有哪些选项可以调整？What options can I adjust?

「三棱柱体积」的设置：「底边」默认 6；「三角形高」默认 4；「棱长」默认 10。每次生成结果都按当前设置处理。Settings in the Triangular Prism Volume — "Base" default 6; "Triangle height" default 4; "Length" default 10. The result always uses the current settings.

计算精度如何？How precise are the results?

「三棱柱体积」使用 JavaScript 双精度浮点数（约 15–16 位有效数字）；极大或极小的数值可能存在精度误差。The Triangular Prism Volume uses double-precision floating point (about 15–16 significant digits); very large or very small values may lose precision.

「三棱柱体积」免费吗？需要注册吗？Is the Triangular Prism Volume free? Do I need an account?

「三棱柱体积」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Triangular Prism Volume is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.