What is the difference between syms and sym in MATLAB?

Syms x y% is the symbolic variable x y can be used directly after X y, and the result of their operation is also the symbolic variable


Of course the above can also be x=sym (' x '), Y=sym (' Y ')


SYS (' a+b ')% is the conversion of a+b to symbolic expressions


The two have different use occasions


For example, the number of symbolic variables involved is relatively small, but the use of relatively high frequency, then is the use of syms
However, if the number is many, but the use of less frequency is used Sym