User:Cmprince/sandbox

$f(x)$

$f′(x)$

$f&thinsp;(x)$

$f&thinsp;′(x)$

$f&thinsp;′′(x)$

$f_{x&thinsp;}(x)$

$f&thinsp;(&thinsp;x&thinsp;)$

$f_{x}&thinsp;(x)$

$f&thinsp;_{x}(x)$

$f&thinsp;′′(x + h)$

$f&thinsp;′′(&thinsp;x + h&thinsp;)$

$f&thinsp;(&thinsp;x + h&thinsp;)$

$f&#8202;(x)$

$f&#8202;′(x)$

$f&#8202;′′(x)$

$f_{x&#8202;}(x)$

$f&#8202;(&#8202;x&#8202;)$

$f_{x}&#8202;(x)$

$f&#8202;_{x}(x)$

$f&#8202;′′(x + h)$

$f&#8202;′′(&#8202;x + h&#8202;)$

$f&#8202;(&#8202;x + h&#8202;)$

$f&thinsp;(x)$

$f&thinsp;′(x)$

$f&thinsp;′′(x)$

$f_{x&thinsp;}(x)$

$f&thinsp;(&#8202;x&#8202;)$

$f_{x}&thinsp;(x)$

$f&thinsp;_{x}(x)$

$f&thinsp;′′(x + h)$

$f&thinsp;′′(&#8202;x + h&#8202;)$

$f&thinsp;(&#8202;x + h&#8202;)$

$cos^{2}&#8202;(&#8202;2&pi;&#8202;)$