1,211 reputation
319
bio website
location
age
visits member for 1 year, 8 months
seen 19 hours ago

Jan
4
asked Is it possible to change the color of plot in Show?
Jan
4
comment how can I generate a sequence of assignments?
@JoelKlein n is also dependant on specific question. But it won't vary within the same question. What I want to do is actually a plot on a zigzag line, and r[i] represent the turning point
Jan
4
revised how can I generate a sequence of assignments?
added 46 characters in body
Jan
4
comment how can I generate a sequence of assignments?
@Nasser Hi! Nasser. Thank you for your suggestion. But you leave a sentence without any further explanation. And I don't know why my way of typing input is not proper. The "r[i]" represents coordinate, when doing a specific calculation, I have to input initial coordinate manually one by one according to real situations. I can't find a better way to do it. Could you suggest a better way for me?
Jan
4
comment how can I generate a sequence of assignments?
Yeah! That's exactly what I want. I have more questions. First, why there is ToString before i ? I found that it also works without ToString. Second, why there is two RowBox? I found that with only one RowBox, that is to write like RowBox[{"r", "[", i, "]", "="}], will give result with a colored left bracket. Though the colored left brackets seems harmless, because I can set values normally. But I still curious about it. And finally both you and Nasser point it out that my way of input is not good. I leave a message for Nasser, would you take a look at it?
Jan
4
revised how can I generate a sequence of assignments?
added 11 characters in body
Jan
4
revised how can I generate a sequence of assignments?
added 11 characters in body
Jan
4
asked how can I generate a sequence of assignments?
Jan
3
accepted Problem with plotting eigenvalues
Jan
3
comment Problem with plotting eigenvalues
Right answer! Thank you very much! It seems that I need to update to mathematica 9 as soon as possible.
Jan
3
comment Problem with plotting eigenvalues
@YvesKlett I use mathematica 8. Have you tried larger value of n ?
Jan
3
asked Problem with plotting eigenvalues
Jan
2
comment Problem with SphericalPlot3D plotting
negative part is plotted with negative radius, that is the key. why didn't I realize it before? Thank you very much!
Jan
2
accepted Problem with SphericalPlot3D plotting
Jan
1
asked Problem with SphericalPlot3D plotting
Dec
22
accepted problem with coloring spherical harmonics
Dec
19
comment problem with coloring spherical harmonics
@Artes Thank you very much for your detailed explanation. Actually I should have understood it without your help. But I forgot there should be a god damn bracket after a & when defining a pure function. This is all my fault.
Dec
19
comment problem with coloring spherical harmonics
@Artes thank you! But forgive my poor mathematica IQ. I just can't understand the col function, especially the "&@", could you explain it to me ?
Dec
19
comment problem with coloring spherical harmonics
@ssch you and rcollyer said differently, but both of you did not give any argument to support your statement. So I am still not sure whether the color function pass the values or not....
Dec
18
awarded  Nice Question