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Class org.netlib.lapack.Dlamch

java.lang.Object
   |
   +----org.netlib.lapack.Dlamch

public class Dlamch

extends Object

Following is the description from the original
Fortran source.  For each array argument, the Java
version will include an integer offset parameter, so
the arguments may not match the description exactly.
Contact seymour@cs.utk.edu with any questions.

 *     ..
 *
 *  Purpose
 *  =======
 *
 *  DLAMCH determines double precision machine parameters.
 *
 *  Arguments
 *  =========
 *
 *  CMACH   (input) CHARACTER*1
 *          Specifies the value to be returned by DLAMCH:
 *          = 'E' or 'e',   DLAMCH := eps
 *          = 'S' or 's ,   DLAMCH := sfmin
 *          = 'B' or 'b',   DLAMCH := base
 *          = 'P' or 'p',   DLAMCH := eps*base
 *          = 'N' or 'n',   DLAMCH := t
 *          = 'R' or 'r',   DLAMCH := rnd
 *          = 'M' or 'm',   DLAMCH := emin
 *          = 'U' or 'u',   DLAMCH := rmin
 *          = 'L' or 'l',   DLAMCH := emax
 *          = 'O' or 'o',   DLAMCH := rmax
 *
 *          where
 *
 *          eps   = relative machine precision
 *          sfmin = safe minimum, such that 1/sfmin does not overflow
 *          base  = base of the machine
 *          prec  = eps*base
 *          t     = number of (base) digits in the mantissa
 *          rnd   = 1.0 when rounding occurs in addition, 0.0 otherwise
 *          emin  = minimum exponent before (gradual) underflow
 *          rmin  = underflow threshold - base**(emin-1)
 *          emax  = largest exponent before overflow
 *          rmax  = overflow threshold  - (base**emax)*(1-eps)
 *
 * =====================================================================
 *
 *     .. Parameters ..

Dlamch()

dlamch(String)

 public Dlamch()

 public static double dlamch(String cmach)

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