8.20.1 Top new questions this week

8.20.1.1 How to convert Unicode to Chinese
8.20.1.2 NonlinearModelFit for nonlinear functions
8.20.1.3 How to make these callout labels not overlap
8.20.1.4 Very simple, unexpected Low Performance of set(=)
8.20.1.5 Where to place Dynamic in an expression?
8.20.1.6 Finding "middle curve" inside region
8.20.1.7 How can I gracefully stop loading a package based on Mathematica version number?
8.20.1.1 How to convert Unicode to Chinese

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=269612

I want 
 "\u5b66\u6821\u73b0\u6709\u5728\u6821\u5b66\u751f25000\u4f59\u4eba\u\ ff0c\u73b0\u5f00\u8bbe30\u4e2a\u672c\u79d1\u4e13\u4e1a" 
to 
... 
[string-manipulation] [conversion] [unicode]
 
asked by a15355447898a https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=87019 Score of 12
answered by rnotlnglgq https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=79138 Score of 13
8.20.1.2 NonlinearModelFit for nonlinear functions

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=269655

I am trying to find a nonlinear model from the data. 
 
My code is below: 
... 
[fitting]
 
asked by ABCDEMMM https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=54516 Score of 9
answered by Alex Trounev https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=58388 Score of 7
8.20.1.3 How to make these callout labels not overlap

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=269652

This is my code: 
... 
[plotting] [labeling]
 
asked by yode https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=21532 Score of 8
answered by MarcoB https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=27951 Score of 6
8.20.1.4 Very simple, unexpected Low Performance of set(=)

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=269767

... 
[functions] [performance-tuning] [variable-definitions]
 
asked by imida k https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=34532 Score of 8
answered by Roman https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=26598 Score of 3
8.20.1.5 Where to place Dynamic in an expression?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=269721

I've just started playing around with dynamic elements and I am confused over where exactly I should be placing Dynamic[] in an expression. My reading of the related help is it should be around the ... 
[dynamic]
 
asked by Ian Miller https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=35308 Score of 8
answered by Lukas Lang https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=36508 Score of 9
8.20.1.6 Finding "middle curve" inside region

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=269638

I have some simply connected region, as shown below. 
... 
[plotting] [graphics] [regions]
 
asked by Daniel Castro https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=69211 Score of 7
answered by cvgmt https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=72111 Score of 10
8.20.1.7 How can I gracefully stop loading a package based on Mathematica version number?

https://mathematica.stackexchange.com/landing/r/digest?cta=question&id=269807

I recently shared some work with a colleague and realized that his having v12 caused issues, as I used some new-to-13 functions. 
How can I put a requirement for a minimum version into my package? 
Here'... 
[packages]
 
asked by evanb https://mathematica.stackexchange.com/landing/r/digest?cta=user&id=7936 Score of 6