acos

예

이 경우 다른 값의 역 코사인을 계산합니다.

 <span class="token php language-php"><span class="token delimiter important"><? php</span>
<span class="token keyword">에코</span> <span class="token punctuation">(</span> <span class="token function">ACOS</span> <span class="token punctuation">(</span> <span class="token number">0.64</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">에코</span> <span class="token punctuation">(</span> <span class="token function">ACOS</span> <span class="token punctuation">(</span> <span class="token number">0</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">에코</span> <span class="token punctuation">(</span> <span class="token function">ACOS</span> <span class="token punctuation">(</span> <span class="token operator">-1</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span><span class="token number">​</span>
<span class="token keyword">에코</span> <span class="token punctuation">(</span> <span class="token function">ACOS</span> <span class="token punctuation">(</span> <span class="token number">1</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token keyword">에코</span> <span class="token punctuation">(</span> <span class="token function">ACOS</span> <span class="token punctuation">(</span> <span class="token number">2</span> <span class="token punctuation">)</span> <span class="token punctuation">)</span> <span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

직접 시도하십시오