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real
実部
呼び出し手順
[y] = real(x)
引数
- x
実数または複素数のベクトルまたは行列
- y
実数の行列
説明
real(x) は
xの実部です. ( 複素数を入力するには%iを参照ください).
例
real([1 %i 2]) real(1+0*%i) real(2+3*%i) real(1+%s) real(sprand(3,3,0.1)) // With polynomials: A = [1-%i*%z (%z-%i)^2] real(A) // With rationals: A = [ %z/(1-%z) (1-%z)/%z^2]; B = A(1,[2 1]) C = A + %i*B A, real(C)
参照
- imag — 虚部
履歴
| Version | Description |
| 6.0 | Extension to rationals |
| Report an issue | ||
| << isreal | Complex | Discrete mathematics >> |