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Lecture notes 2011 (slides), pdf.file - Katedra matematiky FEL ČVUT

Lecture notes 2011 (slides), pdf.file - Katedra matematiky FEL ČVUT

Lecture notes 2011 (slides), pdf.file - Katedra matematiky FEL ČVUT

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Pˇríklad: Rovnice tg a = z má ˇrešení právě tehdy když<br />

z ∈ {j, −j}. Množinou ˇrešení je<br />

Výpočet:<br />

Substituce: e 2ja = p<br />

z = j. Pak<br />

1 1 + jz<br />

Ln<br />

2j 1 − jz .<br />

sin a<br />

cos a = eja − e−ja j(eja + e−ja ) = e2ja − 1<br />

j(e2ja + 1)<br />

p − 1 = jz(p + 1) ⇐⇒ p =<br />

e 2ja =<br />

1 + jz<br />

1 − jz .<br />

a ∈ 1 1 + jz<br />

Ln<br />

2j 1 − jz .<br />

1 + jz<br />

, z = −j<br />

1 − jz<br />

Jan Hamhalter http://math.feld.cvut.cz/hamhalte Matematika pro Kybernetiku <strong>Lecture</strong> Notes 76 / 369

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