Ward #30: Operator derivative

[ValeryOchkov]

[MikeArmstrong]

Why the change though Valery?

[ValeryOchkov]

Mike Armstrong wrote:

Why the change though Valery?

See one more member of this Ward

http://communities.ptc.com/message/234084

[Werner_E]

The prime operator could/should/must be used in MC only on some special occasions. You couldn't just write y'(2)=

It seems that in Prime the prime (sic!) operator is equivalent to the differential quotient and this is an improvement.

[MikeArmstrong]

Cheers for the explanation.

Improvement did you say?????

[Werner_E]

Mike Armstrong wrote:

Cheers for the explanation.

Improvement did you say?????

Sure

I won't hesitate to mention the positive aspects of Prime, too - amongst them are the much better handling in editing matrices (not the scrolling in matrix evaluation - thats worse than ugly) and the ability of solving ODEs with units.

Unfortunately those aspects are clearly outweighted by the disadvantages - yet (positive thinking - what else are we left with).

[MikeArmstrong]

I won't hesitate to mention the positive aspects of Prime, too - amongst them are the much better handling in editing matrices

The 'Mixed Unit ' input tables are a big step forward IMO. However, no allowing variables to be passed to tables is yet again another limitation.

[Werner_E]

Fully agreed on. Dynamic unit checking is an advantage and the disadvantage of having to state the unit even if the value is zero in some cases sure is a price I won't mind paying. The table fature looks interesting but isn't quite finished IMO - yes, it should accept variables as input and it also would be nice to have some similar kind of format available for the simple display/evaluation of matrices.