Re
The real part function.
Syntax
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Re(x)-
xis a number, vector, or matrix
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Description
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If
xis a number,Re(x)is the real part ofx. -
If
vis a vector,Re(v)is the vector of the real parts ofv. -
If
Ais a matrix,Re(A)is the matrix of the real parts ofA.
Typewise, Re(x) is always a real number, vector, or matrix.
Examples
Re(1 + √3⋅i)
1
Re(e^(π/6⋅i))
0.866025403784 (=√3/2)
Re(❨2 + i, 3 − 2⋅i, 1 − i❩)
⎛2⎞ e⎜3⎟ ⎝1⎠
Re(❨❨5, i❩, ❨−i, −1❩❩)
⎛5 0 ⎞ ⎝0 −1⎠