i>φ</mi></mrow></mtd></mtr><mtr><mtd><mrow><mi>sin</mi><mi>φ</mi></mrow></mtd></mtr></mtable><mo fence="true">)</mo></mrow></mrow><annotation encoding="application/x-tex">{\bold e}(\varphi) = \begin{pmatrix}
\cos\varphi\\\sin\varphi
\end{pmatrix}</annotation></semantics></math></span><span class="katex-html" aria-hidden="true"><span class="strut" style="height:1.45em;"></span><span class="strut bottom" style="height:2.40003em;vertical-align:-0.95003em;"></span><span class="base displaystyle textstyle uncr