public class SLASSQ
- extends java.lang.Object
SLASSQ is a simplified interface to the JLAPACK routine slassq.
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 firstname.lastname@example.org with any questions.
* SLASSQ returns the values scl and smsq such that
* ( scl**2 )*smsq = x( 1 )**2 +...+ x( n )**2 + ( scale**2 )*sumsq,
* where x( i ) = X( 1 + ( i - 1 )*INCX ). The value of sumsq is
* assumed to be non-negative and scl returns the value
* scl = max( scale, abs( x( i ) ) ).
* scale and sumsq must be supplied in SCALE and SUMSQ and
* scl and smsq are overwritten on SCALE and SUMSQ respectively.
* The routine makes only one pass through the vector x.
* N (input) INTEGER
* The number of elements to be used from the vector X.
* X (input) REAL array, dimension (N)
* The vector for which a scaled sum of squares is computed.
* x( i ) = X( 1 + ( i - 1 )*INCX ), 1 <= i <= n.
* INCX (input) INTEGER
* The increment between successive values of the vector X.
* INCX > 0.
* SCALE (input/output) REAL
* On entry, the value scale in the equation above.
* On exit, SCALE is overwritten with scl , the scaling factor
* for the sum of squares.
* SUMSQ (input/output) REAL
* On entry, the value sumsq in the equation above.
* On exit, SUMSQ is overwritten with smsq , the basic sum of
* squares from which scl has been factored out.
* .. Parameters ..
|Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
public static void SLASSQ(int n,