org.netlib.lapack
Class SLAMCH

java.lang.Object
  extended by org.netlib.lapack.SLAMCH

public class SLAMCH
extends java.lang.Object

SLAMCH is a simplified interface to the JLAPACK routine slamch.
This interface converts Java-style 2D row-major arrays into
the 1D column-major linearized arrays expected by the lower
level JLAPACK routines.  Using this interface also allows you
to omit offset and leading dimension arguments.  However, because
of these conversions, these routines will be slower than the low
level ones.  Following is the description from the original Fortran
source.  Contact seymour@cs.utk.edu with any questions.

* .. * * Purpose * ======= * * SLAMCH determines single precision machine parameters. * * Arguments * ========= * * CMACH (input) CHARACTER*1 * Specifies the value to be returned by SLAMCH: * = 'E' or 'e', SLAMCH := eps * = 'S' or 's , SLAMCH := sfmin * = 'B' or 'b', SLAMCH := base * = 'P' or 'p', SLAMCH := eps*base * = 'N' or 'n', SLAMCH := t * = 'R' or 'r', SLAMCH := rnd * = 'M' or 'm', SLAMCH := emin * = 'U' or 'u', SLAMCH := rmin * = 'L' or 'l', SLAMCH := emax * = 'O' or 'o', SLAMCH := 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 ..


Constructor Summary
SLAMCH()
           
 
Method Summary
static float SLAMCH(java.lang.String cmach)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SLAMCH

public SLAMCH()
Method Detail

SLAMCH

public static float SLAMCH(java.lang.String cmach)