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1.1 ! root 1: .TH 450 1 ! 2: .SH NAME ! 3: 450 \- handle special functions of the DASI 450 terminal ! 4: .SH SYNOPSIS ! 5: .B 450 ! 6: .SH DESCRIPTION ! 7: .I 450\^ ! 8: supports special functions of, and optimizes the use of, the ! 9: .SM DASI ! 10: 450 ! 11: terminal, ! 12: or any terminal that is functionally identical, ! 13: such as the ! 14: .SM DIABLO ! 15: 1620 or ! 16: .SM XEROX ! 17: 1700. ! 18: It converts half-line forward, half-line reverse, and full-line reverse ! 19: motions to the correct vertical motions. ! 20: It also ! 21: attempts to draw Greek letters and other special symbols ! 22: in the same manner as ! 23: .IR 300 (1). ! 24: .I 450\^ ! 25: can be used ! 26: to print equations neatly, in the sequence: ! 27: .PP ! 28: .RS ! 29: neqn\| file\| .\|.\|.\| \(bv\| nroff\| \(bv\| 450 ! 30: .RE ! 31: .PP ! 32: .SM WARNING: ! 33: make sure that the ! 34: .SM PLOT ! 35: switch on your terminal is ! 36: .SM ON ! 37: before ! 38: .I 450\^ ! 39: is used. ! 40: The ! 41: .SM SPACING ! 42: switch should be put in the desired position (either 10- or 12-pitch). ! 43: In either case, vertical spacing is 6 lines/inch, ! 44: unless dynamically changed to 8 lines per inch by an appropriate escape sequence. ! 45: .PP ! 46: .I 450\^ ! 47: can be used with the ! 48: .IR nroff (1) ! 49: .B \-s ! 50: flag or ! 51: .B \&.rd ! 52: requests, when it is necessary to insert paper manually or change fonts ! 53: in the middle of a document. ! 54: Instead of hitting the ! 55: return ! 56: key in these cases, ! 57: you must use the ! 58: line-feed ! 59: key to ! 60: get any response. ! 61: .PP ! 62: In many (but not all) cases, the use of ! 63: .I 450\^ ! 64: can be eliminated in favor of one of the following: ! 65: .PP ! 66: .RS ! 67: nroff\| \-T450\| files\| .\|.\|. ! 68: .RE ! 69: or ! 70: .RS ! 71: nroff\| \-T450\-12\| files\| .\|.\|. ! 72: .RE ! 73: .PP ! 74: The use of ! 75: .I 450\^ ! 76: can thus often be avoided unless ! 77: special delays or options are required; ! 78: in a few cases, however, the additional movement optimization of ! 79: .I 450\^ ! 80: may produce better-aligned output. ! 81: .PP ! 82: The ! 83: .IR neqn (1) ! 84: names of, and ! 85: resulting output for, the Greek and special characters supported ! 86: by ! 87: .I 450\^ ! 88: are shown in ! 89: .IR greek (7). ! 90: .SH SEE ALSO ! 91: .IR 300 (1), ! 92: .IR eqn (1), ! 93: .IR graph (1G), ! 94: .IR mesg (1), ! 95: .IR stty (1), ! 96: .IR tabs (1), ! 97: .IR tbl (1), ! 98: .IR tplot (1G), ! 99: .IR troff (1), ! 100: .IR greek (7). ! 101: .SH BUGS ! 102: Some special characters cannot be correctly printed in column 1 ! 103: because the print head cannot be moved to the left from there. ! 104: .br ! 105: If your output contains Greek and/or reverse line-feeds, ! 106: use a friction-feed platen instead of a forms tractor; ! 107: although good enough for drafts, ! 108: the latter has a tendency to slip when reversing direction, ! 109: distorting Greek characters and misaligning the first line of text after one or more ! 110: reverse line-feeds.
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