18,332 reputation
13593
bio website ibnhconsulting.blogspot.com
location Melbourne
age
visits member for 2 years, 9 months
seen 7 mins ago

Oct
15
comment Equivalent command to the Maple indets command
@ChenStatsYu in that case use Maple but use Mma for the stuff that you don't feel that Maple does well, ... or cannot do
Oct
15
comment Equivalent command to the Maple indets command
@ChenStatsYu if Maple works for you and you understand it then stick to it. The time needed to switch to a rival product is rarely worth it if you are proficient in one of the other Ms
Oct
15
comment Equivalent command to the Maple indets command
@ChenStatsYu I think it is unfair to say it sucks at PDE solving. While i used to solve PDEs day in day out I have not done so for 10 years. There are still some problems that Mma cannot solve so you have to roll your own -- which I did cause NDSolve couldn't do it. Also NDSolve is an incredibly complex function to learn if you want to delve into it. Perhaps you should post a question if you are having a problem solving a PDE.
Oct
15
comment Conditional replace of a column
@kguler thanks. it is amazing what you can learn here. I never knew there was Threshold but it's been there since 8!
Oct
15
comment Equivalent command to the Maple indets command
@ChenStatsYu Mma is really poor with subscripted variables ..surprising for a software that many would say is the best computer algebra software. Mathcad is great for subscripted variable, easily the best on the market, but of course it has other deficiencies relative to Mma. As a Maple user you would know that Maple also is much better than Mma for subscripted variables, but not as good as Mathcad.
Oct
15
revised Equivalent command to the Maple indets command
added 288 characters in body
Oct
15
comment Equivalent command to the Maple indets command
Yes good idea @RolfMertig. Do you have a more elegant explanation of the way Symbolize works? My attempted comment in my answer is rather clumsy. But it is still breakfast time here and my brain is foggy
Oct
15
answered Conditional replace of a column
Oct
15
comment Conditional replace of a column
was going to post an answer using Clip...never knew about Threshold!
Oct
15
answered Equivalent command to the Maple indets command
Oct
11
comment How can I set Grid alignments using numbers?
@Kuba I couldn't agree more. However designed this stuff has never made layouts themselves. More to the point it seems that there has been a lack of coordination or project management in the design of Grid, Pane, Panel and so on. The result is that you end up just wasting a lot of time on this stuff
Oct
9
comment Notebook's WindowSize interference with contents' Dynamic ImageSizes
This sort of stuff is infuriating. Creating efficient working layouts in Mathematica is enough to drive you crazy.
Oct
9
comment Solving Fredholm Equation of the first kind
The approaches described here: mathematica.stackexchange.com/questions/4677/… should help.
Oct
9
comment Looping through a list partition
Note that in V9 there is also the function Developer`PartitionMap that will do what you require.
Oct
7
comment Cases or Select for catching elements in a list?
the list has elements that are reals or integers multiplied by strings therefore the pattern used for testing is (r_Real|r_Integer) s_String. In addition to that the OP wanted a constraint on the string so the string has to be tested to make sure it matches either Plx or HIP. If you get a pattern match then you want the value of the real or integer, r, returned.
Oct
6
comment Very serious multiplication bug when subscripts are used
As I said I had no issues with 9.0.1 with the notebook you linked.
Oct
6
comment Very serious multiplication bug when subscripts are used
@physicsphile ok this seems to be a bug with V10. Your notebook evaluated fine for me using V9 and tried with V10 and got the bug. I'm using OS X 10.9.5. Maybe we can get a few others to try both 9 and 10 and confirm bug in V10.
Oct
6
comment Very serious multiplication bug when subscripts are used
@physicsphile it works fine for me
Oct
5
comment Problem with Classify Documentation Center page
OS X 10.9.5 yes it seems data is being downloaded when you try and open neat examples.
Oct
5
comment Very serious multiplication bug when subscripts are used
I'm not as negative about subscripts as others here but you really need to be using Symbolize for effective error free subscripts (...or use Mathcad where it is seamless).