Template:Significant figures
0
概要
此模板提供两个函数，取决于输入。
- 如果只提供一个参数，该模板计算提供的数字的有效数字。超出1012至 10−12、−10−12至−1012的数字将被忽略。
- 如果提供两个参数，该模板将第一个数字舍为第二个参数给出的有效数字数。
範例
两个参数
{{significant figures|123.456|7}}→ 123.4560{{significant figures|123.456|6}}→ 123.456{{significant figures|123.456|5}}→ 123.46{{significant figures|123.456|4}}→ 123.5
{{significant figures|123,456|3}}→ 123,000{{significant figures|12345.6|3}}→ 12,300{{significant figures|1234.56|3}}→ 1,230{{significant figures|12.3456|3}}→ 12.3{{significant figures|1.23456|3}}→ 1.23
{{significant figures|.123456|3}}→ 0.123{{significant figures|.0123456|3}}→ 0.0123{{significant figures|.00123456|3}}→ 0.00123{{significant figures|0.123456|3}}→ 0.123{{significant figures|0.0123456|3}}→ 0.0123{{significant figures|0.00123456|3}}→ 0.00123
{{significant figures|123.456|2}}→ 120{{significant figures|123.456|1}}→ 100{{significant figures|123.456|0}}→ 0
{{significant figures|987654321|9}}→ 987,654,321{{significant figures|987654321|8}}→ 987,654,320{{significant figures|987654321|7}}→ 987,654,300{{significant figures|987654321|6}}→ 987,654,000{{significant figures|987654321|5}}→ 987,650,000{{significant figures|987654321|4}}→ 987,700,000{{significant figures|987654321|3}}→ 988,000,000{{significant figures|987654321|2}}→ 990,000,000{{significant figures|987654321|1}}→ 1.0×109
一个参数
{{significant figures|123400}}→ 4{{significant figures|12340}}→ 4{{significant figures|1234}}→ 4{{significant figures|123.4}}→ 4{{significant figures|12.34}}→ 4{{significant figures|1.234}}→ 4
{{significant figures|0.1234}}→ 4{{significant figures|0.01234}}→ 4{{significant figures|0.001234}}→ 4{{significant figures|.1234}}→ 4{{significant figures|.01234}}→ 4{{significant figures|.001234}}→ 4
{{significant figures|-123.4}}→ 4{{significant figures|-12.34}}→ 4{{significant figures|-1.234}}→ 4
相关模板和模块
- {{Significant figures/rnd}}，使用{{Rnd}}，其使用{{#invoke:Math|precision_format}}
- {{Significant figures/sum}}，使用{{Precision}}，其使用{{#invoke:Math|precision}}
- {{Order of magnitude}}