static float Area ( float a , float b ) {
  if ( a < 0 && b < 0 ) return - 1 ;
  float h = ( float ) Math . sqrt ( ( ( Math . pow ( a , 2 ) + Math . pow ( b , 2 ) ) / ( Math . pow ( a , 2 ) * Math . pow ( b , 2 ) ) ) ) ;
  float A = ( float ) ( 0.70477 * Math . pow ( h , 2 ) ) ;
  return A ;
}

static float Area ( float a , float b ) { if ( a < 0 && b < 0 ) return - 1 ; float h = ( float ) Math . sqrt ( ( ( Math . pow ( a , 2 ) + Math . pow ( b , 2 ) ) / ( Math . pow ( a , 2 ) * Math . pow ( b , 2 ) ) ) ) ; float A = ( float ) ( 0.70477 * Math . pow ( h , 2 ) ) ; return A ; }
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