org.netlib.lapack
Class Dlaisnan
java.lang.Object
org.netlib.lapack.Dlaisnan
public class Dlaisnan
- extends java.lang.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
* =======
*
* This routine is not for general use. It exists solely to avoid
* over-optimization in DISNAN.
*
* DLAISNAN checks for NaNs by comparing its two arguments for
* inequality. NaN is the only floating-point value where NaN != NaN
* returns .TRUE. To check for NaNs, pass the same variable as both
* arguments.
*
* Strictly speaking, Fortran does not allow aliasing of function
* arguments. So a compiler must assume that the two arguments are
* not the same variable, and the test will not be optimized away.
* Interprocedural or whole-program optimization may delete this
* test. The ISNAN functions will be replaced by the correct
* Fortran 03 intrinsic once the intrinsic is widely available.
*
* Arguments
* =========
*
* DIN1 (input) DOUBLE PRECISION
* DIN2 (input) DOUBLE PRECISION
* Two numbers to compare for inequality.
*
* =====================================================================
*
* .. Executable Statements ..
Method Summary |
static boolean |
dlaisnan(double din1,
double din2)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Dlaisnan
public Dlaisnan()
dlaisnan
public static boolean dlaisnan(double din1,
double din2)