FindRoots: Find Roots of X(a) Error Function

In TauP.R: Earthquake Traveltime Calculations for 1-D Earth Models

Description

Finds solutions for epicentral distance error - takeoff angle function.

Usage

FindRoots(phase, delta, h, model, startalpha, startdist)

Arguments

phase	Wave arrival phase (e.g. 'P', 'S'.)
delta	Epicentral distance (degrees)
h	Focal depth (km)
model	Planet model
startalpha	Takeoff angle interval containing root (degrees)
startdist	Epicentral distance interval containing root (degrees)

Value

List with the following elements:

p	Solution ray parameter (s/deg)
a	Solution takeoff angle (deg)
d	Solution epicentral distance (deg)

Author(s)

Jake Anderson

Examples

data(model)
phase = 'P'
delta = 60
h = 100
startalpha = c(30, 31)
startdelta = FindDist4p('P', 100, model, takeoff = startalpha)$dist

FindRoots(phase, delta, h, model, startalpha, startdelta)

TauP.R documentation built on May 2, 2019, 3:25 a.m.