# Derivatives (C1W2L05) | Summary and Q&A

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August 25, 2017
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DeepLearningAI
Derivatives (C1W2L05)

## TL;DR

Gain an intuitive understanding of calculus and derivatives to effectively apply deep learning algorithms.

## Key Insights

• đ¸ Deep understanding of calculus is not required for effective application of deep learning.
• âī¸ Forward and backward functions in deep learning encapsulate calculus concepts.
• â ī¸ Derivatives in calculus represent the slope or rate of change of a function.
• đĨ The slope of a linear function remains constant at every point.
• â Intuitive understanding of derivatives is sufficient for applying deep learning algorithms.
• đŠī¸ Increasing the input by a small amount results in the output changing by a multiple of the derivative.
• đŠī¸ The formal definition of derivatives involves infinitesimally small changes.

## Transcript

in this video I want to help you gain an intuitive understanding of calculus and the derivatives now maybe you're thinking that you haven't seen calculus since your college days and depending on when you graduate maybe that was quite some time back now if that's what you're thinking don't worry you don't need a deep understanding of calculus in ord... Read More

### Q: Is a deep understanding of calculus essential for applying deep learning?

No, a deep understanding of calculus is not necessary to apply deep learning effectively. It is sufficient to have an intuitive understanding of calculus principles.

### Q: What will be covered in future videos regarding calculus in deep learning?

In subsequent videos, forward and backward functions will be introduced, which encapsulate all necessary calculus concepts for deep learning algorithms.

### Q: Can experts in calculus skip this video?

Yes, for those familiar with calculus, it is okay to skip this video. However, it may still be beneficial to gain an intuitive understanding of derivatives in deep learning.

### Q: What does the slope of a function represent?

The slope of a function, also referred to as the derivative, represents the rate of change. It describes how much the output of the function changes with respect to a small change in the input.

## Summary & Key Takeaways

• The video emphasizes that a deep understanding of calculus is not necessary to apply deep learning effectively.

• Calculus concepts will be encapsulated into forward and backward functions in later videos.

• The video provides an intuitive explanation of derivatives using a straight line function.