PNG  IHDRK&~ {]0PLTE@@@ftRNSS pHYsetEXtTitleInftyEditor MathImageytEXtAuthorAdministrator*tEXtDescription $ x_{p}=x_{0} $bTtEXtCopyrightInftyProject@$tEXtCreation Time r'rr'rr IDATx `+`LNQXK<$Sb.0