Re: how to make this code faster
It looks like you're using Numeric for your arrays, but you are then pulling sin from the math module and calculating one point at a time. Instead try using sin(whole array) where sin is a ufunc from the Numeric module. Also, it's usually not good practice to "import Numeric as *". Instead try import Numeric as N so it's clear which functions you are using. -- David -- http://mail.python.org/mailman/listinfo/python-list
Re: print there!
It's possible you will need to run python -u for this to behave as expected. Otherwise python may buffer the output until it sees a newline so you only see the last result. -- David -- http://mail.python.org/mailman/listinfo/python-list
Re: Simple but fast 2D lib for drawing pixels
Peter Mexbacher wrote: > Hello, > > we want to teach absolute programming newbies > a first language, so they can start programming > simple scientific models. > > We thought Python would make a good choice for > a first language; but where pretty stumped when > we found out that there is no simple way to draw > pixels to a screen. (This is needed for fractals, > agent-based models etc -> like Conways Game of Life) > > Our requirements: > > -) easy to learn (newbs!) > -) not too slow (after all, the models should simulate something) > -) python :-) > > Any ideas? > > Best Regards, > Peter Did you look at the turtle module included in the standard distribution? It's very simple, made for beginners, and fast enough for simple plots (just turn off the tracer). If you intend to introduce the class to GUI's at some point I believe turtle is built on the Tkinter canvas widget, which may be suitable as well. However, if you're teaching scientific programming to more technically advanced users you might be better off using matplotlib/ipython. That will get you a matlab-like enviroment with many advanced capabilities. -- David -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a more random int?
Well it IS unusual actually (~1/365.25). Please tell them for me. -- Dave -- http://mail.python.org/mailman/listinfo/python-list
Re: Creating a more random int?
Steven, Have you considered you might want a less random distribution? If you just want to remove repeats so it 'seems' more random you could do that (replace any repeat with another random value not equal to the last value). It likely will not be as uniformly random as the original sequence but it will be 'smoother' in some definition that you might prefer for your uses. Be very careful though if you are going to use it for technical work that requires a uniform distribution in the formal sense. -- Dave -- http://mail.python.org/mailman/listinfo/python-list
