Existing CAS commands --> Prime discussion

[ijabbott]

(11-08-2019 01:00 AM)toml_12953 Wrote:  

(11-08-2019 12:57 AM)compsystems Wrote:  increment(a,1) stores the result of a: = a+1

No, it doesn't. It increments a temporary copy of a, not a itself. That's why you have to store the result back to the variable a yourself.

a:=increment(a,1)

In Xcas, increment(a,1) gets turned into a+=1, incrementing a in place.