Re: [Numpy-discussion] bug report ?

2008-03-05 Thread Revaz Yves
> PyArray_FromDims is backward compatible Numeric API which did not > support 64-bit correctly. > > PyArray_SimpleNew is the equivalent that accepts 64-bit dimensions > information and is what you should be using. > ok, excellent ! thanks for the answer. yves > -Travis O. > > __

Re: [Numpy-discussion] bug report ?

2008-03-05 Thread Revaz Yves
Matthieu Brucher wrote: > Hi, > > What type is pos->dimensions in your case ? It may be long (64bits > long) instead of the expected int (32bits) or something like that ? > yes, pos->dimensions is a 64bits long while PyArray_FromDims expects 32bits int. Why is it so ? > Matthieu > > 2008/2/8,

[Numpy-discussion] cross

2008-03-03 Thread Revaz Yves
Dear List, I'm computing the cross product of positions and velocities of n points in a 3d space. Using the numpy function "cross", this can be written as : n=1000 pos = random.random([n,3]) vel = random.random([n,3]) cross(pos,vel) I compare the computation time needed with a C-api I wrote (de