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My Own Solution Manual of PRML

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Solution Manual For PRML

Before the Maintext

I am now getting back to update the solution manual, irregularly though :). Please feel free to contact me at [email protected] or [email protected] (transition period). More detaild info can be found on my homepage.

I have finished Chapter1-Chapter11, and all solutions have already been uploaded online.

Several things need to be emphasized here: (1) I wrote this solution manual purely out of admiration of PRML, and I have no will to publish this solutiona manual, (2)It is only meant to be used as personal study reference, please donnot take it for other purposes, e.g., upload to other websites or publication. (3) If it is illegal (infringing the copyright), please contact me and I will withdraw this solution maunal immediately. (4) There is actually an official solution manual published by Springer. You can find it here.


This is a solution manual for the famous book Pattern Recognition and Machine Learning. I will keep update the solutions as my learning process goes on.

There are some problems that I am not sure, which have been marked by "Waiting for update" in the solution manual. If you want to provide a solution for these unsolving problems, have any question, or come up with better ideas about any problem in the manual, please feel free to contact me.

Update List

Sep 22,2018

Hooray! Currently, I have finished all the solutions in Chapter 1-6 and already upload it online.

Oct 23,2018

Hooray! Currently, I have finished all the solutions before Chapter 7(included). However, the update process may be suspended lately because of the heavy workload of my lab projects.

Nov 26,2018

Hooray! Currently, I have (partly) finished chapter 8. Starting from section 8.4.4, I have found that many equations in the book are quite different from what I derive. Therefore, the corresponding exercises (8.19-8.29) are left behind.

Dec 24,2018

Hooray! Currently, I have finished chapter 9. It is a good day today. Merry Christmas!

Jan 31,2019

Currently, I have finished all the problems before Problem 10.26. However, I may suspend updating the solution manual due to several personal reasons.

Feb 19,2019

I have got back to update the solution manual.

Mar 5,2019

Hooray! Currently, I have finished chapter 10 and already upload it online.

Apr 1,2019

Hooray! Currently, I have finished chapter 11 and already upload it online. Happy Fool's Day!

Apr 10,2019

The updating is suspended indefinitely, but I will get back to it someday in the future.

Mar 31,2021

I am back!


  1. Special thanks to Dr.Spyridon Chavlis, from IMBB, FORTH (E-mail: [email protected]). He provides an analytical soultion on Prob 1.34, i.e., back substituting p(x) into the constraints to prove that it is a Gaussain.

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