出典: フリー教科書『ウィキブックス(Wikibooks)』
* 15:52, 14 January 2006 133.16.36.32 (Correct link)
* 08:23, 26 April 2005 133.9.193.145
* 06:08, 23 February 2004 HarpyHumming
* 05:40, 23 February 2004 HarpyHumming
* 05:07, 23 February 2004 130.34.123.167
* 00:44, 23 February 2004 HarpyHumming m
* 00:43, 23 February 2004 HarpyHumming
![{\displaystyle {\begin{cases}\nabla \cdot \mathbf {B} (t,\mathbf {x} )&=0\\\nabla \times \mathbf {E} (t,\mathbf {x} )+{\frac {\partial \mathbf {B} (t,\mathbf {x} )}{\partial t}}&=0\\\nabla \cdot \mathbf {D} (t,\mathbf {x} )&=\rho (t,\mathbf {x} )\\\nabla \times \mathbf {H} (t,\mathbf {x} )-{\frac {\partial \mathbf {D} (t,\mathbf {x} )}{\partial t}}&=\mathbf {j} (t,\mathbf {x} )\end{cases}}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/f6c6b48d51fce2c80bed9d84ee1b7b7ec8017336)
の2段目と4段目の式の分数部分が、小さくて、見づらいです。
いっぽう、
![{\displaystyle \nabla \cdot \mathbf {B} (t,\mathbf {x} )=0}](https://wikimedia.org/api/rest_v1/media/math/render/svg/f70e340e70ce809ed42801e2bc71f851a5fc0be8)
![{\displaystyle \nabla \times \mathbf {E} (t,\mathbf {x} )+{\frac {\partial \mathbf {B} (t,\mathbf {x} )}{\partial t}}=0}](https://wikimedia.org/api/rest_v1/media/math/render/svg/baa709dfbeba0b92371a9a4784191bd388ad4cc6)
![{\displaystyle \nabla \cdot \mathbf {D} (t,\mathbf {x} )=\rho (t,\mathbf {x} )}](https://wikimedia.org/api/rest_v1/media/math/render/svg/032a2c3a6c082bf2115759a18bf928431d1d3d45)
![{\displaystyle \nabla \times \mathbf {H} (t,\mathbf {x} )-{\frac {\partial \mathbf {D} (t,\mathbf {x} )}{\partial t}}=\mathbf {j} (t,\mathbf {x} )}](https://wikimedia.org/api/rest_v1/media/math/render/svg/3c4a8d26df4fe4c19bc3987c1d9fd32ee8e7b20d)
このように4つの式に分割すれば、分数式の部分は拡大されますが、左側の「{」が表示できません。--すじにくシチュー (トーク) 2016年2月9日 (火) 02:49 (UTC)返信