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+--- Thread: answer() cmd (/thread-11551.html)
answer() cmd - compsystems - 10-08-2018 07:28 PM
Hello, in CAS mode (hp-prime) "Ans" cmd only operates with the first level =(. One way to work with CAS for beginners is to operate history levels.
for example, hp50 RPN
PHP Code:
'a+b=c'
'a' -
SIMPLIFY
returns
'b=c-a'
xcas
PHP Code:
autosimplify(0):;
a + b = c;
ans(-1)-a;
simplify(ans(-1))
b=c-a
to emulate this situation, a new command is required, it can be called ans(#) (lowercase) that allows to call the specific input (history level)
a+b = c [enter] a+b = c
ans(1)-a [enter] a+b-a = c-a
simplify(ans(1)) [enter] b = c-a