LaTeX forum ⇒ Math & Scienceequation error Topic is solved

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equation error

Postby wadoud » Sat Aug 15, 2015 8:13 pm

hi all
i have the following error:
  1. ! Extra }, or forgotten \right.

thank you
  1. \begin{align}
  2. \Phi &= \frac{\partial V_{i}}{\partial x_{j}} \tau_{ij}\\
  3. &= \mu \left[ 2 \left( \frac{\partial V_{x}}{\partial x}\right)^{2} +2\left( \frac{\partial V_{y}}{\partial x}\right)^{2} +2\left( \frac{ \partial V_{z}}{ \partial x}\right)^{2} +\left( \frac{ \partial V_{x}}{ \partial x} +\frac{\partial V_{x}}{\partial y}\right)^{2}\\
  4. &+ \left(\frac{\partial V_{z}}{\partial y} +\frac{\partial V_{y}}{ \partial z}\right)^{2} + \left( \frac{\partial V_{x}}{ \partial z} +\frac{\partial V_{z}}{ \partial x}\right)^{2} \left] + \lambda \left(\frac{ \partial V_{x}}{\partial x} +\frac{ \partial V_{y}}{\partial y} +\frac{ \partial V_{z}}{ \partial z} \right)^{2}
  5. \label{eq:mmm}
  6. \end{align}
Last edited by Johannes_B on Sat Aug 15, 2015 8:28 pm, edited 1 time in total.
Reason: Code markup added


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Stefan Kottwitz
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Postby Stefan Kottwitz » Sat Aug 15, 2015 8:57 pm

There are unmatched square brackets: \left[ and \left]. Remove them or make them to a correct \left \right pair.

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Postby wadoud » Sun Aug 16, 2015 4:47 pm

thank you stefan

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