Wednesday, July 23, 2014

what is a binary tree?

A binary tree is a data structure where a node has the degree of 0 or 1 or at most 2. This may be due to the binary system (only 0 and 1 are recognized) in computer.

It is pretty easy to find desired data using this data structure.

learning method

curiosity is your instinct. So
First learning method is to ask your own questions. The simplest will be 'what is the meaning of XXX?' Do not think about its stupidity.

Second, you have to find your way to learn something. For our human, we need one standing point, i.e. origin. Namely, you have to copy something from your parents, your teachers, your observation, etc. Then try to use the knowledge you have to know other unknown things. Therefore, analog is important.

Third, we have to understand something based on your origin (the basic concepts). You can not just copy others' thoughts. We have to find our own ways to understand the new concept, new method, new principles, new knowledge. Your own way to understand new things or concepts are extremely important because it only works for you. Other peoples' methods may totally do not work for you. Or even they work for you, you may not find the best way for yourself, therefore you waste your time and lose your identity.

Tuesday, July 15, 2014

questions about yourself

1. How to be a good PI?
2. Where is your limitation?
3. How to test your limitation?
4. Why you care about outside if you even can not control yourself?