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fix math equation in geometry.rst

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rockfool 2019-09-17 12:41:48 -04:00
parent 7bf455d722
commit 06ebf7dbad
1 changed files with 4 additions and 4 deletions
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8
docs/source/methods/geometry.rst
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@ -924,8 +924,8 @@ as follows,
\mu \in [0, 1]
\phi \in [0, 2\pi]
where :math:`{\mu = cos(\theta)}` is the cosine of the polar angle between reflected direction
and the normal to the surface; and :math: `{\theta}` is the azimuthal angle.
where :math:`\mu = cos(\theta)` is the cosine of the polar angle between reflected direction
and the normal to the surface; and :math:`\theta` is the azimuthal angle.
Thus, the cosine of the polar angle can extracted like this,
.. math::
: label: white-reflection-cosine
@ -935,7 +935,7 @@ Thus, the cosine of the polar angle can extracted like this,
and the azimuthal angle is uniform,
.. math::
: label: white-reflection-unifrm
: label: white-reflection-uniform
f(\phi) = frac{d\phi}{2\pi}
@ -947,7 +947,7 @@ like this,
\mu = sqrt{\eta_(1)}
\phi = 2\pi \eta_(2)
where :math: `{\eta}` is the uniform random number, simply computed by random number generator.
where :math:`\eta` is the uniform random number, simply computed by random number generator.
Eventually, the final reflected direction vector can be computed via the rotation of normal to
the surface like this,
.. math::