cladiv.f.html

来自「famous linear algebra library (LAPACK) p」· HTML 代码 · 共 69 行

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<pre>
      COMPLEX FUNCTION <a name="CLADIV.1"></a><a href="cladiv.f.html#CLADIV.1">CLADIV</a>( X, Y )
<span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">  -- LAPACK auxiliary routine (version 3.1) --
</span><span class="comment">*</span><span class="comment">     Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd..
</span><span class="comment">*</span><span class="comment">     November 2006
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">     .. Scalar Arguments ..
</span>      COMPLEX            X, Y
<span class="comment">*</span><span class="comment">     ..
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">  Purpose
</span><span class="comment">*</span><span class="comment">  =======
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">  <a name="CLADIV.14"></a><a href="cladiv.f.html#CLADIV.1">CLADIV</a> := X / Y, where X and Y are complex.  The computation of X / Y
</span><span class="comment">*</span><span class="comment">  will not overflow on an intermediary step unless the results
</span><span class="comment">*</span><span class="comment">  overflows.
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">  Arguments
</span><span class="comment">*</span><span class="comment">  =========
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">  X       (input) COMPLEX
</span><span class="comment">*</span><span class="comment">  Y       (input) COMPLEX
</span><span class="comment">*</span><span class="comment">          The complex scalars X and Y.
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">  =====================================================================
</span><span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">     .. Local Scalars ..
</span>      REAL               ZI, ZR
<span class="comment">*</span><span class="comment">     ..
</span><span class="comment">*</span><span class="comment">     .. External Subroutines ..
</span>      EXTERNAL           <a name="SLADIV.31"></a><a href="sladiv.f.html#SLADIV.1">SLADIV</a>
<span class="comment">*</span><span class="comment">     ..
</span><span class="comment">*</span><span class="comment">     .. Intrinsic Functions ..
</span>      INTRINSIC          AIMAG, CMPLX, REAL
<span class="comment">*</span><span class="comment">     ..
</span><span class="comment">*</span><span class="comment">     .. Executable Statements ..
</span><span class="comment">*</span><span class="comment">
</span>      CALL <a name="SLADIV.38"></a><a href="sladiv.f.html#SLADIV.1">SLADIV</a>( REAL( X ), AIMAG( X ), REAL( Y ), AIMAG( Y ), ZR,
     $             ZI )
      <a name="CLADIV.40"></a><a href="cladiv.f.html#CLADIV.1">CLADIV</a> = CMPLX( ZR, ZI )
<span class="comment">*</span><span class="comment">
</span>      RETURN
<span class="comment">*</span><span class="comment">
</span><span class="comment">*</span><span class="comment">     End of <a name="CLADIV.44"></a><a href="cladiv.f.html#CLADIV.1">CLADIV</a>
</span><span class="comment">*</span><span class="comment">
</span>      END

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