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Input:
re2D(exp(i*x))
Write:
`re2D(exp(i*x))`
Compute:
$$re2D(exp(i\ x))$$
Output:
$$re2D(exp(i\ x))== re(exp(mul(Complex(0.0,1.0),x)))\ and\ im(exp(mul(Complex(0.0,1.0),x)))$$
Result: $$re(exp(mul(Complex(0.0,1.0),x)))\ and\ im(exp(mul(Complex(0.0,1.0),x)))$$
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