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extern/stdcxx/4.2.1/examples/manual/complex.cpp

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+/**************************************************************************
+ *
+ * complex.cpp - Example program for complex.
+ *
+ * $Id: complex.cpp 550991 2007-06-26 23:58:07Z sebor $
+ *
+ ***************************************************************************
+ *
+ * Licensed to the Apache Software  Foundation (ASF) under one or more
+ * contributor  license agreements.  See  the NOTICE  file distributed
+ * with  this  work  for  additional information  regarding  copyright
+ * ownership.   The ASF  licenses this  file to  you under  the Apache
+ * License, Version  2.0 (the  "License"); you may  not use  this file
+ * except in  compliance with the License.   You may obtain  a copy of
+ * the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the  License is distributed on an  "AS IS" BASIS,
+ * WITHOUT  WARRANTIES OR CONDITIONS  OF ANY  KIND, either  express or
+ * implied.   See  the License  for  the  specific language  governing
+ * permissions and limitations under the License.
+ *
+ * Copyright 1994-2006 Rogue Wave Software.
+ * 
+ **************************************************************************/
+
+#include <complex>    // for complex
+#include <iostream>   // for cout, endl
+#include <sstream>    // for sstream
+
+#include <examples.h>
+ 
+int main () 
+{
+    // Create two arbitrary complex numbers.
+    std::complex<double> a (1.2, 3.4);
+    std::complex<double> b (-9.8, -7.6);
+
+    // Perform some arithmetic on the numbers.
+    a += b;
+    a /= std::sin (b) * std::cos (a);
+    b *= std::log (a) + std::pow (b, a);
+
+    // Output result in fixed notation.
+    std::cout.setf (std::ios::fixed, std::ios::floatfield);
+    std::cout << "a = " << a << ", b = " << b << std::endl;
+
+    return 0;
+}