Reset integrating a function

[Snorre]

(02-01-2015 09:27 AM)parisse Wrote:  Just checked on emulator, I can not reproduce a crash.
And yes, it would probably be meaningfull to make int(g) work like g'.

Did you name the parameter "x"? Just asking because it matters:

g(x):=x and int(g) crashes my device quite reliable.
f(t):=t and int(f) doesn't crash it, but returns (t)->(t*x). So, "int" does not care about the actual parameter as "diff" would do, but always assumes "x" to be the integration variable.
h(x):=c and int(h) doesn't crash, but returns _x->(c*x(_x)) if CAS setting "Exact" is checked, or "Error: Bad Argument Value" if unchecked.
BTW: if CAS setting "Exact" is unchecked I cannot do a simple "restart", so have to either re-check it or do "restart(NULL)".

P.S. Maybe helpful to see what's going on: int(h) says "Warning, evaluating (integrate((x)->c,x))(_x) as a function not as a product".