# ODE solver stats

**URL:** <https://discourse.julialang.org/t/ode-solver-stats/30150>\
**Category:** New to Julia\
**Created:** [October 22, 2019, 12:31am UTC](https://discourse.julialang.org/t/ode-solver-stats/30150 "2019-10-22T00:31:33Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![ChrisRackauckas](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/chrisrackauckas/32/77_2.png) [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)\
**Post date:** [October 22, 2019, 8:12am UTC](https://discourse.julialang.org/t/ode-solver-stats/30150/2 "2019-10-22T08:12:10Z")

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In the computation of an implicit solve, `W = I - gamma*J` is what’s actually used in the updates. In the Newton method, then this matrix is used and reused. (7) is then the number of times the Newton iterations diverged, the accepted steps are the number of steps which were accepted because the error was below the tolerance. The rootfind calls refers to the number of condition calls in the ContinuousCallbacks

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