add stratonovich method from equation (1) in D. Sornette 2008
renamed
reworking exponential_brownian class to add more functionality
code to compare euler/analytical methods for exponential brownian motion
adding analysis and seperating methods with and without "momentum"
change to plot lims
add price retrace method
add ImpExpBrownian - exponential brownian motion with impetus: functional euler and analytical methods with step() and retrace()
analysis of ImpExpBrownian
add contents section with links
remove unnecisarry code from test_impetus
various file name changes. add ExponentialBrownian asa function based alternative to ExponentialBrownian_class
minor changes
major formating changes to motion with const drift. similar changes planned for motion with momentum.
docstring edits
add analytical derivation, make changes to corrisponding function, and new formating changes
final version
final version
initialize file
working analytical method