21. Usually, landing a number of special symbols on reels is required to activate the free spins bonus round. 22. *Readers who can't see the colors might find a key box with a special symbol to be helpful. 23. A unique system of cadency is used for daughters inheriting arms, and a special symbol for United Empire Loyalists. 24. Surface weather analyses have special symbols which show frontal systems, cloud cover, high pressure, implying good and fair weather. 25. The display was pre-WYSIWYG, so special symbols embedded in the displayed text marked formatting information the user could edit. 26. This prevents these characters from being used in the languages, and requires a special symbol for the empty string. 27. The special symbols in zone 5 are assigned the value of " 38 ", as indicated by their number. 28. The highest number that has been recorded is 3000, but there are special symbols to indicate fractions and weights. 29. Other special symbols communicate flow control information produced and consumed in the higher layers ( link and transport ). 30. The windowing interface was not graphically based-instead it drew its windows using special symbols stored in a character format.
