differential equations
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05-06-2019, 09:35 PM
(This post was last modified: 05-06-2019 10:19 PM by Anders.)
Post: #6
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RE: differential equations
This is another example of where the CAS system does not return the result in a canonical form. Unfortunately, it also happens in a few places, e.g. various transformations like Laplace, Z etc. While CAS produces mathematically correct results, it is sometimes far away from what the user expects (canonical form) and it takes time (some times a lot of time) to figure out how to convert the result into a familiar form that the user can interpret and understand it's physical meaning (e.g. in physics, EE, control theory etc).
Since CAS is not using table look up as a method to produce results but is using generalized algorithms (which I think is actually a strength because it can therefore cover more complex situation generally). However, it would be great to have a sort of normalization algorithm as a last step that the user could invoke (kind of like the "simplify" button) to normalize a result into canonical form and/or with an option to auto normalize (through a setting). I've been toying with the idea to write a program that does this. I was thinking write a parser that parse the input and call CAS term-wise and then have the program put together the result in canonical form, but it became too complex because you have to normalize the input first anyway. So some work. |
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Messages In This Thread |
differential equations - eduardo_MO0@hotmail.com - 05-02-2019, 08:36 AM
RE: differential equations - parisse - 05-02-2019, 10:58 AM
RE: differential equations - eduardo_MO0@hotmail.com - 05-06-2019, 05:59 AM
RE: differential equations - Aries - 05-06-2019, 12:09 PM
RE: differential equations - Anders - 05-06-2019, 10:08 PM
RE: differential equations - Aries - 05-10-2019, 02:01 PM
RE: differential equations - Anders - 05-11-2019, 05:26 AM
RE: differential equations - ijabbott - 05-06-2019, 06:31 AM
RE: differential equations - Anders - 05-06-2019 09:35 PM
RE: differential equations - eduardo_MO0@hotmail.com - 05-07-2019, 01:39 AM
RE: differential equations - parisse - 05-07-2019, 06:23 AM
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