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    Copyright
    Preface
    Ch. 1. Language Basics
    Ch. 2. Declarations
    Ch. 3. Expressions
    Ch. 4. Statements
    Ch. 5. Functions
    Ch. 6. Classes
    Ch. 7. Templates
    Ch. 8. Standard Library
    Ch. 9. Input and Output
    Ch. 10. Containers, Iterators, and Algorithms
    Ch. 11. Preprocessor Reference
    Ch. 12. Language Reference
    Ch. 13. Library Reference
    <algorithm>
    <bitset>
    <cassert>
    <cctype>
    <cerrno>
    <cfloat>
    <ciso646>
    <climits>
    <clocale>
    <cmath>
    <complex>
    abs function template
    arg function template
    complex class template
    complex<double> template specialization
    complex<float> template specialization
    complex<long double> template specialization
    conj function template
    cos function template
    cosh function template
    exp function template
    imag function template
    log function template
    log10 function template
    norm function template
    operator+ function template
    operator- function template
    operator* function template
    operator/ function template
    operator== function template
    operator!= function template
    operator<< function template
    operator>> function template
    polar function template
    pow function template
    real function template
    sin function template
    sinh function template
    sqrt function template
    tan function template
    tanh function template
    <csetjmp>
    <csignal>
    <cstdarg>
    <cstddef>
    <cstdio>
    <cstdlib>
    <cstring>
    <ctime>
    <cwchar>
    <cwctype>
    <deque>
    <exception>
    <fstream>
    <functional>
    <iomanip>
    <ios>
    <iosfwd>
    <iostream>
    <istream>
    <iterator>
    <limits>
    <list>
    <locale>
    <map>
    <memory>
    <new>
    <numeric>
    <ostream>
    <queue>
    <set>
    <sstream>
    <stack>
    <stdexcept>
    <streambuf>
    <string>
    <strstream>
    <typeinfo>
    <utility>
    <valarray>
    <vector>
    Appx. A. Compiler Extensions
    Appx. B. Projects
    Glossary
    Colophon
    Index
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    Chapter 13. Library Reference > real function template

    real function template Returns real part 
    template<typename T> T real(const complex<T>& z)

    The real function returns the real part of z, that is, z.real( ).


      

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