Changeset 7810:5bce221a6310


Ignore:
Timestamp:
12/18/07 13:01:07 (5 years ago)
Author:
mabshoff@…
Branch:
default
Tags:
2.9.1.alpha1
Message:

Fix numerical noise issue in doctests for root finding code (#1548)

File:
1 edited

Legend:

Unmodified
Added
Removed

  • sage/calculus/calculus.py

    r7800 r7810  
    24752475            sage: v = 0.004*(9600*e^(-(1200*t)) - 2400*e^(-(300*t))) 
    24762476            sage: v.find_root(0, 0.002) 
    2477             0.0015403270679114178 
     2477            0.001540327067911417... 
    24782478 
    24792479             sage: a = .004*(8*e^(-(300*t)) - 8*e^(-(1200*t)))*(720000*e^(-(300*t)) - 11520000*e^(-(1200*t))) +.004*(9600*e^(-(1200*t)) - 2400*e^(-(300*t)))^2 
    … …  
    24882488        However \code{find_root} works beautifully: 
    24892489            sage: a.find_root(0,0.002) 
    2490             0.00041105140493493411 
     2490            0.0004110514049349341... 
    24912491        """ 
    24922492        a = float(a); b = float(b) 
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