tDBさん，みなさん，こん○○は(^^♪飯島です．

題名の通り，私の環境では本文中で\houteisikiを使用するのと
mawarikomi環境下で\houteisikiを使用するのでは
結果が異なります．
どうなるかというと$\houteisiki{...}$の部分が下の行に移動し，
その後の文字列「のグラフがある．」が「2つの関数」とくっついて見えます．

2つの関数 のグラフがある．
         $y=1/3x^2$

のようになります．できれば，mawarikomi環境下でも通常の本文中の
挙動をして欲しいのですが，皆さんの環境ではいかがでしょうか？
私の環境だけの挙動でしょうか？
長くはなりますが，現象が発現するソースとログファイルをつけます．
○○を見よなどの解決策をご教授お願いします<(_ _)>
ちなみにログファイルによるとemathMw.sty，emath.styのバージョンは
次のようになっています．

(c:/usr/local/share/texmf-local/ptex/platex/misc/emath/emathMw.sty
Package: emathMw 2007/01/11 v0.17 回り込み
) (c:/usr/local/share/texmf-local/ptex/platex/misc/emath/emath.sty
Package: emath 2007/01/06 v1.74p 初等数学マクロパッケージ

\documentclass{jarticle}
\usepackage{emathMw}
\usepackage[debug]{emathPs}
\begin{document}
右の図のように，2つの関数$\houteisiki{y=\frac13x^2}$のグラフがある．

\begin{mawarikomi}{}%
 {%環境記述
 \begin{pszahyou}%
  [ul=5mm]%
  (-4,4)(-4,4)%
          \setlinewidth{3}%
          \small
  \def\Fx{1/3*X**2}
 \end{pszahyou}
 }%
 右の図のように，2つの関数$\houteisiki{y=\frac13x^2}$のグラフがある．
\end{mawarikomi}
\end{document}

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▼関連発言
│
└◆5527:mawarikomi環境下での\houteisikiの挙動について [飯島　徹] 01/15 21:50
　└◆5528:Re:mawarikomi環境下での\houteisikiの挙動について [tDB] 01/15 22:33
　　├◆5529:--- [---] 01/15 23:35
　　├◆5530:Re[2]:mawarikomi環境下での\houteisikiの挙動について [田中徹] 01/15 23:36
　　│└◆5533:Re[3]:mawarikomi環境下での\houteisikiの挙動について [tDB] 01/16 11:55
　　│　└◆5537:Re[4]:mawarikomi環境下での\houteisikiの挙動について [田中徹] 01/16 14:13<-last
　　└◆5532:Re[2]:mawarikomi環境下での\houteisikiの挙動について [tDB] 01/16 11:52
　　　└◆5536:Re[3]:mawarikomi環境下での\houteisikiの挙動について [飯島　徹] 01/16 13:37