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Diffstat (limited to 'source/know/concept/langmuir-waves/index.md')
| -rw-r--r-- | source/know/concept/langmuir-waves/index.md | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/source/know/concept/langmuir-waves/index.md b/source/know/concept/langmuir-waves/index.md index 7dc5dbf..be47567 100644 --- a/source/know/concept/langmuir-waves/index.md +++ b/source/know/concept/langmuir-waves/index.md @@ -130,8 +130,8 @@ where we neglect $$(\vb{u}_{e1} \cdot \nabla) \vb{u}_{e1}$$ because $$\vb{u}_{e1}$$ is so small by assumption: $$\begin{gathered} - m_e (n_{e0} \!+\! n_{e1}) \Big( \pdv{(\vb{u}_{e0} \!+\! \vb{u}_{e1})}{t} - + \big( (\vb{u}_{e0} \!+\! \vb{u}_{e1}) \cdot \nabla \big) (\vb{u}_{e0} \!+\! \vb{u}_{e1}) \Big) + m_e (n_{e0} \!+\! n_{e1}) \bigg( \pdv{(\vb{u}_{e0} \!+\! \vb{u}_{e1})}{t} + + \big( (\vb{u}_{e0} \!+\! \vb{u}_{e1}) \cdot \nabla \big) (\vb{u}_{e0} \!+\! \vb{u}_{e1}) \bigg) = q_e \big( n_{e0} \!+\! n_{e1} \big) \big( \vb{E}_0 \!+\! \vb{E}_1 \big) \\ \implies \qquad |