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Real Variable - Powersoft - 03-20-2015 07:01 PM
Is it posible to declare a variable exclusive as a Real Variable as like in C
example : float c;
Cheers,
Jan
RE: Real Variable - Joe Horn - 03-21-2015 09:18 AM
(03-20-2015 07:01 PM)Powersoft Wrote: Is it posible to declare a variable exclusive as a Real Variable as like in C
example : float c;
In Home and CAS, there is no need to declare a variable as real if you use one of the permanently built-in, non-purgeable variables A through Z and θ (Theta). By design, they can only contain reals.
In CAS only, assume(c, float) restricts 'c' to contain only reals. Note: you can also use DOM_FLOAT instead of float. They both mean "real".
RE: Real Variable - parisse - 03-21-2015 12:27 PM
assume(c,float) is an hypothesis, a special kind of assignation. It is used by the system to simplify re/im/conj(c). But it does not prevent assignation of any value to c later (regarding that aspect, assume does the same as :=).
RE: Real Variable - cyrille de brébisson - 03-23-2015 06:51 AM
Hello,
(03-20-2015 07:01 PM)Powersoft Wrote: Is it posible to declare a variable exclusive as a Real Variable as like in C
Nope, sorry, Apart from the 'build in', pre-created global variables, which you can not erase, you can not programaticaly, or otherwise do that.
Cyrille