三种方式

<script type="math/tex; mode=display">h _{\theta }\left ( x \right ) = \theta _{0} + \theta _{1}x _{1} + \theta _{2}x _{2} + ... + \theta _{n}x _{n}</script>

效果： $$h _{\theta }\left ( x \right ) = \theta _{0} + \theta _{1}x _{1} + \theta _{2}x _{2} + ... + \theta _{n}x _{n}$$

$$h _{\theta }\left ( x \right ) = \theta _{0} + \theta _{1}x _{1} + \theta _{2}x _{2} + ... + \theta _{n}x _{n}$$

效果： \(h _{\theta }\left ( x \right ) = \theta _{0} + \theta _{1}x _{1} + \theta _{2}x _{2} + ... + \theta _{n}x _{n}\)

$h _{\theta }\left ( x \right ) = \theta _{0} + \theta _{1}x _{1} + \theta _{2}x _{2} + ... + \theta _{n}x _{n}$

效果： $h _{\theta }\left ( x \right ) = \theta _{0} + \theta _{1}x _{1} + \theta _{2}x _{2} + … + \theta _{n}x _{n}$