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# Accession Number:

## AD0270739

# Title:

## A METHOD FOR COMPUTING THE GENERALIZED CIRCULAR ERROR FUNCTION AND THE CIRCULAR COVERAGE FUNCTION

# Descriptive Note:

# Corporate Author:

## NAVAL WEAPONS LAB DAHLGREN VA

# Report Date:

## 1962-01-23

# Pagination or Media Count:

##
111.0

# Abstract:

## An efficient method is described for the numerical evaluation by a high speed digital computer of the integral of an uncorrelated elliptical Gaussian distribution over a circle centered at the mean of the distribution, VK,c the integral of a circular Gaussian distribution over a circle offset from the mean of the distribution, PR,d. The methods are programmed for both the NORC and the IBM 7090. They yield 6 decimal digit accuracy with an average computation time of 10 milliseconds per case on NORC and 6 milliseconds on the 7090. Two extensive inverse tables are included. One gives the radius K as a function V and c, and the other gives the radius R as a function of P and d.

# Distribution Statement:

## APPROVED FOR PUBLIC RELEASE

#