cos
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constexpr Complex cos(const Complex &z) noexcept
Returns the complex cos [1] of a complex number \(z\).
Parameters
- const Complex &z
A complex number.
Returns
- type Complex
A complex number.
The cos function of a complex number is defined as:
\[\cos z = \cos x \cosh y + i\sin x \sinh y\]
for \(\Re(z) = x\) and \(\Im(z) = y\).
Example
Complex z = 3 + 4_j;
std::cout << cos(z) << "\n";
Output:
-27.0349 - 3.85115j
References