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Thread: REAL precision

  1. Feb 7th, 2003, 01:32 PM #1
    paneb
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    REAL precision

    what is the maximum number of decimal places of precision in a REAL in fortran?
    thanks
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  2. Feb 8th, 2003, 09:38 PM #2
    jim mcnamara
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    It is implementation dependent.

    approximately:

    REAL*4 (single precision) is 7-8 decimal places

    REAL*8 (double precision) 15 decimal places

    REAL*16 (quad precision) 31 decimal places

    Look at your compiler doumentation
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