Real

Real

is the head used for real (floating‐point) numbers.

Details

  • _Real can be used to stand for a real number in a pattern.
  • You can enter a floating‐point number of any length.
  • You can enter a number in scientific notation by using the form mantissa*^exponent.
  • You can enter a floating‐point number in base b using b^^digits. The base must be less than 36. The letters a–z or A–Z are used in sequence to stand for digits 10 through 35.
  • Real is also used to indicate an approximate real number in Read.

Examples

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Basic Examples  (1)

Enter a real number:

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Real is the Head for real numbers:

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Scope  (11)

Applications  (4)

Properties & Relations  (5)

Possible Issues  (1)

Introduced in 1988
(1.0)
|
Updated in 1996
(3.0)