CodePudding user response:

Floating point precision is missing
Storage form of floating point determines the point

CodePudding user response:

The

refer to the original poster weixin_44585796 response:

Binary floating-point operation error, not the relationship between Java, is accurate to use large Numbers

CodePudding user response:

Keep how many decimal places this way can be used to obtain a relatively accurate value, to strictly accurate use of large Numbers