jakubi

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20 years, 3 days

MaplePrimes Activity


These are replies submitted by jakubi

Are there math applications written in this .NET?

Does it make sense a Maple interface written in .NET? Should OpenMaple provide support for .NET to make this possible?

 

I have read this article at CNET:

Vista's big problem: 92 percent of developers ignoring it

May be that sales of Vista are good, and at the same time it is not popular among developers.

 

 

Yet, with expressions, it is not explained how to use it, and what to expect:

is(x ,continuous);
                                false

is(1,continuous);
                                false

assume(x,continuous);
is(x ,continuous);
                                 true

is(x+1 ,continuous);
                                 FAIL

In regards to functions, the example of that paper is the first explicit example on the use of 'continuous' in this context that I have seen. My first expectation was that the authors were familiar with this subject. Apparently not...

Yet, with expressions, it is not explained how to use it, and what to expect:

is(x ,continuous);
                                false

is(1,continuous);
                                false

assume(x,continuous);
is(x ,continuous);
                                 true

is(x+1 ,continuous);
                                 FAIL

In regards to functions, the example of that paper is the first explicit example on the use of 'continuous' in this context that I have seen. My first expectation was that the authors were familiar with this subject. Apparently not...

I have observed this message so many times that I got used to it (ie that the MapleNet link is not working).

I have observed this message so many times that I got used to it (ie that the MapleNet link is not working).

I see this paper with an example of this property not working:

is(x -> (1/x)+1-(1/x),continuous);
                                false

but I do not find this counterexample very significant as these ones neither work:

is(x -> x,continuous);
                                false

is(x -> 1,continuous);
                                false

I see this paper with an example of this property not working:

is(x -> (1/x)+1-(1/x),continuous);
                                false

but I do not find this counterexample very significant as these ones neither work:

is(x -> x,continuous);
                                false

is(x -> 1,continuous);
                                false

In the usual convention, nabla is understood as a vector operator. So, there is no need to add an arrow over nabla. And it is advantageous not to add it. Very seldom I see someone using it.

In the usual convention, nabla is understood as a vector operator. So, there is no need to add an arrow over nabla. And it is advantageous not to add it. Very seldom I see someone using it.

For three-vectors (vectors in the ordinary 3D space) Physicists most frequently, use the arrow notation in calculations, while use mainly bold letters in documentation (papers and books). This has been the trend along several decades already. 

Using Maple for calculations, it makes sense the arrow notation. And an overdot for its total time derivative. In this case of the differential form of the Faraday's law, however, it has the partial derivative of the magnetic field wrt time. So, better use the partial derivative notation.

 

 

For three-vectors (vectors in the ordinary 3D space) Physicists most frequently, use the arrow notation in calculations, while use mainly bold letters in documentation (papers and books). This has been the trend along several decades already. 

Using Maple for calculations, it makes sense the arrow notation. And an overdot for its total time derivative. In this case of the differential form of the Faraday's law, however, it has the partial derivative of the magnetic field wrt time. So, better use the partial derivative notation.

 

 

of the second entry (`A[n]`) is not very helpful indicating that it is different to the  entry to its left whose tooltip is almost the same (A[i]). Yes it has the backquotes, but that is not enough hint for realizing that it generates a name.  Besides, it  generates  this code:

`#msub(mi(\"A\",mathcolor = \"#00a050\"),mi(\"∗\",
mathcolor = \"#c800c8\"))`

choosing colors for me that I may not want.

 

 

Are you aware of a good updated review on the status of Java?

Are you aware of a good updated review on the status of Java?

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