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Merge of 24093: floating point precision.

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Paul Ackersviller 2007-11-26 04:01:46 +00:00
parent 27b59c6b31
commit 860be3d535
1 changed files with 2 additions and 1 deletions
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Doc/Zsh/arith.yo
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@ -12,7 +12,8 @@ integers, the shell is usually compiled to use 8-byte precision where this
is available, otherwise precision is 4 bytes. This can be tested, for is available, otherwise precision is 4 bytes. This can be tested, for
example, by giving the command `tt(print - $(( 12345678901 )))'; if the example, by giving the command `tt(print - $(( 12345678901 )))'; if the
number appears unchanged, the precision is at least 8 bytes. Floating number appears unchanged, the precision is at least 8 bytes. Floating
point arithmetic is always double precision. point arithmetic always uses the `double' type with whatever corresponding
precision is provided by the compiler and the library.
The tt(let) builtin command takes arithmetic expressions as arguments; each The tt(let) builtin command takes arithmetic expressions as arguments; each
is evaluated separately. Since many of the arithmetic operators, as well is evaluated separately. Since many of the arithmetic operators, as well