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Template:Order of magnitude

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Sử dụng phương pháp

This template calculates the (decimal)order of magnitudeof numbers within the ranges 10300to 10−300and −10−300to −10300.

The acceptable input and the output produced are optimised for use in other templates.

  • The hyphen (not a true minus sign) is used for negative numbers.
  • No separator is used for thousands.
  • The template gives 0 for 0. Although, strictly speaking, this is mathematically incorrect it has been designed this way so as to be more useful in other templates. An important example of this is that when used by {{convert}} 0 °C or 0 °F is considered to be on the same order of magnitude as ±1 °C or ±1 °F respectively.

Kiểu mẫu

  • {{Order of magnitude|123400}}→ 5[1]
  • {{Order of magnitude|12340}}→ 4[2]
  • {{Order of magnitude|1234}}→ 3[3]
  • {{Order of magnitude|123.4}}→ 2[4]
  • {{Order of magnitude|12.34}}→ 1[5]
  • {{Order of magnitude|1.234}}→ 0[6]
  • {{Order of magnitude|.1234}}→ -1[7]
  • {{Order of magnitude|.01234}}→ -2[8]
  • {{Order of magnitude|0}}→ 0[9]
  • Template:Xpdoc

Sai lầm cách dùng

The input must be an unformatted number, or the template will emit errors:

  • {{Order of magnitude|}}Expression error: Unexpected = operator
  • {{Order of magnitude|123,400}}Expression error: Unrecognised punctuation character ","
  • {{Order of magnitude|foo}}Expression error: Unrecognised word "foo"

Kỹ thuật yếu điểm

This template calculates the order of magnitude of a number, using thenatural logarithmof the absolute value of the number, divided by the log of 10. The amount is adjusted fortruncation errorin the digital format, and the floor number of the results is used. The magnitude of fractions, such as 0+1/1000 (-3), will also be calculated. The code uses four expansion-depth levels.

Khuôn mẫu số liệu

Dưới là nên khuôn mẫuKhuôn mẫu số liệu,Áp dụng vớiKhả thị hóa biên tập khíChờ công cụ.

Order of magnitude khuôn mẫu số liệu

This template calculates the order of magnitude of numbers within the ranges 10^300 to 10^−300 and −10^−300 to −10^300.

Khuôn mẫu tham số[Biên tập khuôn mẫu số liệu]

Tham sốMiêu tảLoại hìnhTrạng thái
Number1

The number to find the order of magnitude of

Con sốThiết yếu