[sage-support] Re: find_root - precision

2010-01-17 Thread Jason Grout
ma...@mendelu.cz wrote: But I do not know, how much can I trust the result. If I do (for example) sin(1).n(digits=1) is it true that the first 1 digits are correct? Or Sage actually passes the computation to scipy or some library which has limited precision a thus, only say fir

[sage-support] Re: find_root - precision

2010-01-14 Thread ma...@mendelu.cz
On 15 led, 00:35, Greg Marks wrote: > Dear Robert, > > I wrote a SAGE worksheet for my freshman calculus class > last semester implementing the Newton-Raphson algorithm > for finding roots of functions to arbitrary precision. > You'll find it unduly didactic, I'm afraid, but a few of > the cells

[sage-support] Re: find_root - precision

2010-01-14 Thread Greg Marks
Dear Robert, I wrote a SAGE worksheet for my freshman calculus class last semester implementing the Newton-Raphson algorithm for finding roots of functions to arbitrary precision. You'll find it unduly didactic, I'm afraid, but a few of the cells toward the end might be the sort of thing you're l