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diff --git a/static/v10/man1/visi.1 b/static/v10/man1/visi.1 new file mode 100644 index 00000000..49db1e73 --- /dev/null +++ b/static/v10/man1/visi.1 @@ -0,0 +1,283 @@ +.ig + @(#)manpage.man 1.3 + manpage.man 1.3 + + Manpage for Visi + + A. F. Gettier + Bell Laboratories + Update made 8/17/82 17:05:54 + Retrieved 11/15/82 13:22:34 +.. +.tr ~ +.TH VISI 1 +.SH NAME +visi \- mathematical spreadsheet +.SH SYNOPSIS +.B visi +[ +.I file +] +.SH DESCRIPTION +.I Visi\^ +is a tabular mathematical worksheet for +data analysis. +If a +.I file +is specified, commands are read from that +file when +.I visi +first starts. +.PP +.I Visi +works only on cursor-controlled terminals such as +the HP2621, and requires the environment variable +TERM (see +.IR environ (7)) +to be set appropriately. +.PP +.I Visi +prompts for input at the top of the screen with +`>>'. +Input +has one of the forms, +.IP +command parameters +.IP +variable = expression +.IP +variable = "string" +.PP +where a variable is a letter and number sequence, for example: +`A2, B10, BB23.' +These variables represent locations on the worksheet; +A2 is column A, row 2. +If you type, in any order, +.IP +A1 = A2 + 5 +.br +A2 = 10 +.LP +the values 15 and 10 will appear on the screen. +If you later type +.IP +A2 = 20 +.LP +the values will be updated to 25 and 20. +.I Visi +treats upper and lower case letters as identical. +.PP +Expressions are parsed, and +standard mathematical precedence is +retained. +The operators +, -, *, /, ** (or ^) +can be used in expressions. +.SS Commands +.TP 10 +.BI copy~~\fR[\fP ~file~ \fR]\fP +Copy the screen image to the +.I file. +If a file is not specified, +.I visi +will prompt for one. +.TP +.B debug +Toggle a flag to give +.IR yacc (1) +debugging output, +very unreadable. +.TP +.BI duplicate ~~p1 ~thru ~p2 ~at ~p3 +Duplicate a block of +definitions in another portion of the screen. +.I P1 +and +.I p2 +are the upper left corner and the +lower right corner of the block to be duplicated. +.I P3 +is the upper left corner of the destination. +.TP +.B edit +Edit the commands list. +If the environment variable `ED' is set, +it is used as the name of the editor. +Otherwise, +.IR ed (1). +is called. +.TP +.B help +Display a brief synopsis +of the commands. +.TP +.B list +List the current definitions on the +terminal. +.TP +.B quit +Quit the program. +.TP +.BI read~~\fR[\fP ~file~ \fR]\fP +Read input lines from the +.I file. +If a file is not specified, +.I visi +will prompt for one. +.TP +.B redraw +Redraw the screen in the event the +terminal output was corrupted. +.TP +.BI replicate ~~p1 ~at ~p2 ~thru ~p3 +Replicate the single definition at +.I p1 +throughout the block from +.I p2 +in the upper left corner thru +.I p3 +in the lower right. +.TP +.BI scale~~\fR[\fP ~column~ \fR]\fP ~nnn +Change the scale of the specified +.I column, +or of the entire tableau if a column is not specified. +The scale +.I nnn +is the number of decimal places +that are displayed to the right +of the decimal point. +Calculations are done in double precision regardless of +.I scale. +.TP +.BI shift ~~direction~ \fR[\fP ~nnn~ \fR]\fP +Shift the current screen in any direction. +The screen is only a window on the tableau. +To see other portions of the tableau, +the screen must be shifted. +Valid directions are: +.BR up , +.BR down , +.BR left , +.BR right . +.I Nnn +is the number of positions to +shift the screen (default 1). +.TP +.B shell +Invoke +.I "/bin/sh" +as an inferior process to +.I visi. +.TP +.B ver +Print the current +version number of +.I visi. +.TP +.BI width ~~column~nnn +Change the width of a column on the display, +or of the entire tableau if no column is +specified. +.TP +.BI write~~\fR[\fP ~file~ \fR]\fP +Write commands to a file. +If a file is not specified, +.I visi +will prompt for one. +.SS Built-in Functions +.TP \w'atan2(e1,e2)\ \ 'u +.BI abs( e ) +Absolute value of +.I e. +.PD 0 +.TP +.BI acos( e ) +Arc cosine of +.I e. +.TP +.BI asin( e ) +Arc sine of +.I e. +.TP +.BI atan( e ) +Arc tangent of +.I e. +.TP +.BI atan2( e1 , e2 ) +Arc tangent of +.I e1/e2. +.TP +.BI cos( e ) +Cosine of +.I e. +.TP +.BI exp( e ) +Exponential function of +.I e. +.TP +.BI gamma( e ) +Log of the gamma function of +.I e. +.TP +.BI hypot( e1 , e2 ) +Square root of the sum of the squares of +.I e1 +and +.I e2. +.TP +.BI int( e ) +The integer part of +.I e +(truncated toward zero.) +.TP +.BI log( e ) +Natural log of +.I e. +.TP +.B pi +The constant 3.14159265358979.... +.TP +.BI pow( e1 , e2 ) +Same as +.I e1^e2. +.TP +.BI sin( e ) +Sine of +.I e. +.TP +.BI sqrt( e ) +Square root of +.I e. +.PD +.SS Other Special Definitions +.TP 10 +.BI position[ e1 , e2 ] +The quantity at row +.I e1, +column +.I e2 +of the tableau. +Numbering for the columns is A = 1, B = 2, ..., AA = 27, +and so on. +.TP +.SM +.B ROW +The row number of this entry. +.TP +.SM +.B COL +The column number of this entry. +.SH "SEE ALSO" +.IR ed (1), +.IR exp (3), +.IR sin (3) +.SH FILES +/usr/lib/visi.help +.SH BUGS +A circular list of variable declarations can +cause +.I visi +to hang in a loop. +.br +.I Scale +does truncation, not rounding. |