Go+ has various rational number types including bigint, bigrat and bigfloat. Here are a few basic examples on bigint type.
Declaration and assignment of bigint type variables
The Go+ language uses the keyword “var” to declare variables.
the integer rational variable can be assigned when declaration. (1r<<65), the value is equal to the 65th power of 2.
The initial value of a rational variable without assignment is not 0 but
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