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[@daniel_an](/creator/youtube/daniel_an)
"What is a gradient Explained in under one minute"  
[YouTube Link](https://youtube.com/watch?v=O6CD4RfCrCE) [@daniel_an](/creator/youtube/daniel_an) 2021-02-11T04:03Z 19.1K followers, 67.6K engagements


"Introduction to Lagrange multipliers"  
[YouTube Link](https://youtube.com/watch?v=8geyGzI5KYQ) [@daniel_an](/creator/youtube/daniel_an) 2025-10-20T00:15Z 19.1K followers, XX engagements


"Lagrange multiplier example problem 1"  
[YouTube Link](https://youtube.com/watch?v=AAmvs39hObY) [@daniel_an](/creator/youtube/daniel_an) 2025-10-20T00:42Z 19.1K followers, XX engagements


"Changing the order of double integral in under one minute"  
[YouTube Link](https://youtube.com/watch?v=GmEA3dMmU9g) [@daniel_an](/creator/youtube/daniel_an) 2021-01-31T06:41Z 19.1K followers, 119.7K engagements


"Lagrange multiplier example problem 2"  
[YouTube Link](https://youtube.com/watch?v=UXdFFM4dLJ4) [@daniel_an](/creator/youtube/daniel_an) 2025-10-20T00:54Z 19.1K followers, XX engagements


"Conditional probability example problem"  
[YouTube Link](https://youtube.com/watch?v=ZQ6vfUwSoTQ) [@daniel_an](/creator/youtube/daniel_an) 2025-10-20T01:12Z 19.1K followers, X engagements


"Using ratio test to determine the convergence of a series"  
[YouTube Link](https://youtube.com/watch?v=ZlJseRTjJcU) [@daniel_an](/creator/youtube/daniel_an) 2021-03-30T19:45Z 19.1K followers, 91.7K engagements


"Conditional probability and Bayes theorem part 2"  
[YouTube Link](https://youtube.com/watch?v=iVHM3qe-9fc) [@daniel_an](/creator/youtube/daniel_an) 2025-10-20T01:05Z 19.1K followers, X engagements


"Critical points local extrema and Hessian"  
[YouTube Link](https://youtube.com/watch?v=sNMJhL50ih8) [@daniel_an](/creator/youtube/daniel_an) 2025-10-19T23:50Z 19.1K followers, XX engagements


"Topics you need to know before the first Python coding exam"  
[YouTube Link](https://youtube.com/watch?v=sf-c3Irp0K8) [@daniel_an](/creator/youtube/daniel_an) 2025-10-19T19:20Z 19.1K followers, XX engagements


"Bayesian theorem example problem"  
[YouTube Link](https://youtube.com/watch?v=wpPmSnJu1rI) [@daniel_an](/creator/youtube/daniel_an) 2025-10-20T01:30Z 19.1K followers, XX engagements


"Multivariable second derivative test example problem"  
[YouTube Link](https://youtube.com/watch?v=xCghUIprzXI) [@daniel_an](/creator/youtube/daniel_an) 2025-10-19T23:56Z 19.1K followers, XX engagements


"Find the point on the plane closest to the origin"  
[YouTube Link](https://youtube.com/watch?v=zTkNLfojh7c) [@daniel_an](/creator/youtube/daniel_an) 2025-10-20T00:32Z 19.1K followers, X engagements