matlab圖像處理程序:%? Script file: c14_date.m
%
%? Purpose:
%??? To calculate the age of an organic sample from the percentage
%??? of the original carbon 14 remaining in the sample.
%
%? Record of revisions:
%????? Date?????? Programmer????????? Description of change
%????? ====?????? ==========????????? =====================
%??? 12/02/97??? S. J. Chapman??????? Original code
%
% Define variables:
%?? age?????? -- The age of the sample in years
%?? lamda???? -- The radioactive decay constant for carbon-14,
%??????????????? in units of 1/years.
%?? percent?? -- The percentage of carbon 14 remaining at the time
%??????????????? of the measurement
%?? ratio???? -- The ratio of the carbon 14 remaining at the time
%??????????????? of the measurement to the original amount of
%??????????????? carbon 14.

% Set decay constant for carbon-14
lamda = 0.00012097;???????????

% Prompt the user for the percentage of C-14 remaining.
percent = input('Enter the percentage of carbon 14 remaining:\n');