sine ocean

Expression 1: "a" equals 0.7 2 1

Expression 2: "z" equals left parenthesis, StartFraction, sin left parenthesis, StartNestedFraction, "x" NestedOver 2 , EndNestedFraction plus "a" tau plus 10 tau random left parenthesis, , right parenthesis , right parenthesis Over 9 , EndFraction plus StartFraction, sin left parenthesis, StartNestedFraction, "y" NestedOver 2 , EndNestedFraction plus 2 "a" tau plus 10 tau random left parenthesis, , right parenthesis , right parenthesis Over 9 , EndFraction , right parenthesis minus left parenthesis, StartFraction, sin left parenthesis, "x" plus "a" tau plus 10 tau random left parenthesis, , right parenthesis , right parenthesis Over 11 , EndFraction plus StartFraction, sin left parenthesis, "y" plus 2 "a" tau plus 10 tau random left parenthesis, , right parenthesis , right parenthesis Over 10 , EndFraction , right parenthesis minus left parenthesis, StartFraction, sin left parenthesis, StartNestedFraction, "x" NestedOver 2 , EndNestedFraction plus "a" tau plus 10 tau random left parenthesis, , right parenthesis , right parenthesis Over 7 , EndFraction , right parenthesis Has graph.