175 reputation
6
bio website
location Hefei, China
age 23
visits member for 1 year, 1 month
seen yesterday

an undergraduate studying computer graphics at USTC,china


Apr
15
comment Read in bezier curve from svg file
@Silvia drive.google.com/file/d/0B3LNqmJl5ibIMXBpYjNfUG5kQ2c/…
Apr
15
asked Read in bezier curve from svg file
Apr
9
accepted Distance between two line segments in 3-space
Apr
4
comment Distance between two line segments in 3-space
what I want is the distance of two line segment, not two infinite line
Apr
4
comment Distance between two line segments in 3-space
It's much clear, but I test it , it's much slower than my previous code
Apr
3
asked Distance between two line segments in 3-space
Mar
8
comment Where to download the MathWorld package?
like this mathworld.wolfram.com/CornuSpiral.html
Mar
8
revised Where to download the MathWorld package?
add the link to the notebook
Mar
8
asked Where to download the MathWorld package?
Mar
5
comment extract line from position data
nice answer, nice update, it works
Mar
5
comment extract line from position data
thanks so much, the first part is exactly what I want
Mar
5
accepted extract line from position data
Mar
5
comment extract line from position data
@rasher,but with PixelValuePositions I get a list of unordering points, what I want is like this Line[{p1,p2...pn}]
Mar
5
asked extract line from position data
Sep
16
comment How does Mathematica solve eigenvalues?
mathematica do not provide the source code,you are not supposed to know the technical details
Sep
16
comment Cannot solve a system of 5 square-root simultaneous equeations
blank means that this function doesnot have a solution
Sep
13
comment A double series with divisibility restrictions
@george2079,that is definately a big improvement
Sep
13
answered A double series with divisibility restrictions
Sep
12
accepted Locator with Integer value coordinates
Sep
10
answered Locator with Integer value coordinates