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Update pg-theorem.mdx typo in transformed log function #630

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Update pg-theorem.mdx typo in transformed log function #630

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2 changes: 1 addition & 1 deletion units/en/unit4/pg-theorem.mdx
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Expand Up @@ -36,7 +36,7 @@ Thus we can rewrite the sum as

We can then use the *derivative log trick* (also called *likelihood ratio trick* or *REINFORCE trick*), a simple rule in calculus that implies that \\( \nabla_x log f(x) = \frac{\nabla_x f(x)}{f(x)} \\)

So given we have \\(\frac{\nabla_\theta P(\tau;\theta)}{P(\tau;\theta)} \\) we transform it as \\(\nabla_\theta log P(\tau|\theta) \\)
So given we have \\(\frac{\nabla_\theta P(\tau;\theta)}{P(\tau;\theta)} \\) we transform it as \\(\nabla_\theta log P(\tau;\theta) \\)



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