# Gradient Checking

**URL:** <https://community.deeplearning.ai/t/gradient-checking/10563>\
**Category:** Improving Deep Neural Networks: Hyperparameter tun\
**Tags:** coursera-platform\
**Created:** [May 31, 2021, 5:37am UTC](https://community.deeplearning.ai/t/gradient-checking/10563 "2021-05-31T05:37:03Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![nramon](https://sea1.discourse-cdn.com/dlai/user_avatar/community.deeplearning.ai/nramon/32/129097_2.png) [@nramon](https://community.deeplearning.ai/u/nramon)\
**Post date:** [June 1, 2021, 1:35pm UTC](https://community.deeplearning.ai/t/gradient-checking/10563/6 "2021-06-01T13:35:01Z")

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Fixed for @Erlend. Good luck with the rest of the course 🙂

A common mistake I’ve seen is using the same expression to compute `theta_plus[i]` and `theta_minus[i]`, probably because it was copied and pasted.

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