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 ACON
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Beta 39 - March 14, 2000
2000/03/14 Added JPEG_Output() to generate create JPEG output files.
Beta 38 - March 13, 2000
2000/03/13 Modified Illustrator_Output() to generate compatible degree symbols.
2000/03/02 Fixed parsing Data_Distance() arguments.
2000/03/02 Added TimeOut(seconds) command to force a quit after the specified time.
Beta 37 - Feb. 25, 2000
2000/02/25 Fixed bug in Data_Histogram().
2000/02/17 Scaled_Symbols() now ignores NAN z values.
2000/02/16 Added optional background colour and text colour to Colour_Legend().
Beta 36 - Feb. 8, 2000
2000/02/08 QuickTime_New() frames per second may now be a decimal value.
2000/02/07 Fixed bug in Lines #´s shown in the status bar on the PC.
Beta 35
2000/02/01 Fixed bug in Symbol_Legend on the PC.
2000/02/01 Line #´s and column #´s are shown in the status bar on the PC.
2000/01/27 List_Dir delimiters set to / on the PC.
Note that file paths may be specified using either / or \ slashes on the PC.
2000/01/25 Saving editor windows defaults to original source window directory.
1999/12/24 New Preference: Updating the graph window may be deferred (improves performance).
1999/12/20 Character_Read() now calculates memory requirement exactly.
Beta 34
1999/12/07 Fixed bug in Data_SQL() when returning numbers > 16777215.
Beta 33
1999/11/25 Fixed bug in Draw_Line menu dialog.
1999/11/24 SQL added as file type for the Text Editor Open/Save dialogs.
1999/11/24 Fixed bug in PostScript_Output() introduced in beta 32.
Beta 32
1999/11/21 Fixed bug in Median() when returning a scalar.
1999/11/17 Divide by zero operations now generate an explicit error message.
1999/11/04 Implemented Data_Dialog(7,"label","function name") on PC.
1999/10/24 Modified Debug(msg detail[,nesting level]) w/optional restriction
on the level of nesting.
Beta 31
1999/10/24 Improved Plot_Histogram([width,][offset,] xvec,yvec,title,xmin,xmax,ymin,ymax[,"fill colour"]),
can now specify the fill colour for the bars as a colour name or matrix of colour names.
1999/10/14 Fixed bug Polygon_Intersect using closed polygons.
1999/10/14 Modified the NAFO_Matrix coordinates for area 3P.
1999/10/12 Added Tab_Table_Vectors(["filename",]names character matrix[,column name character matrix[,digits vector]])
to print a set of columnar data as tab delimited output.
1999/10/11 Fixed bug in Loran chain 593Z.
1999/10/04 Matrix_Read now pre-reads the entire file to get the exact matrix size.
Beta 30
1999/10/01 Added Graph window Text tool.
1999/09/28 Added Find_in_Memory(searchstring) to find text in user functions in memory.
1999/09/28 Added Find_in_Search_Paths(searchstring) to find text in .acn files in the search paths.
1999/09/24 Improved Polygon_Intersect(poly1,poly2[,operand]).
operands are 0 - intersect, 1 - subtract, 2 - or, 3 - union.
Beta 29
1999/09/14 Fixed bug in Member(real vector,real vector).
Beta 28
1999/08/17 Added @DBL_MAX variable (typically 1.79769E+308).
1999/08/17 Added @DBL_MIN variable (typically 2.22507E-308).
1999/08/17 Added @LONG_MAX variable (typically 2147483647).
1999/08/17 Added @LONG_MIN variable (typically -2147483648).
1999/08/17 Added Search_Paths("filepath") to add new paths to func autoload search hierarchy.
1999/08/16 Data_SQL("username","password","SQL") now accepts a char matrix of SQL statements.
1999/08/12 Within functions, character strings (any or statement) may extend over multiple lines.
1999/08/06 StrRep() now fully collapes reduction patterns, e.g. strrep("teeest","ee","e") returns "test"
Beta 27
1999/08/03 Added Tile Vertically on PC.
1999/08/03 Fixed Data_Dialog(12,"label","variable name") on PC.
1999/07/30 Fixed Data_Dialog_Position() on PC.
1999/07/30 Fixed Data_Dialog_Activate() on PC.
Beta 26
1999/07/28 Added 2 opt. param to HTML_Table_Vectors(...,"TD param",decimal digits vect).
1999/07/16 Modified Axis(...left,right,bot,top...) flags, -1 value bypasses the edge.
1999/07/16 Added RMAX(value) to return a nice rounded max value.
1999/07/15 Modified source code filename display in status message.
Beta 25
1999/06/06 Modified GIF_Output(filename[,source file]) to copy base image.
1999/05/25 Modified Expand(char mat,rank) to expand character matrices.
1999/05/13 User functions now show their source file name in the status window.
1999/05/12 Improved some error messages.
1999/05/06 Modified Voronoi_Polygons() to shade polygons when Draw_Filled(1) using Data_Contour_Levels().
Beta 24
1999/05/04 Fixed bug in GIF_Output() when using CMYK colours.
1999/05/03 Auto-loading/execution of functions now support .acn file extensions.
1999/04/26 Describe statements in Data_SQL() now permit @host extension to the table name.
Beta 23
1999/04/23 Fixed bug in Illustrator_Output(xx,3) axis labels.
Beta 22 - Acon Version 8.22
1999/04/21 Improved compatibility of Illustrator_Output(xx,3) with ImageStream.
1999/04/21 Fixed most dialogs in PC version to have the proper initial focus.
1999/04/20 Added Householder(symmetric matrix,diagonal vector,offdiagonal vector)
to reduce a real symmetric matrix to tridiagonal form.
1999/04/20 Added Tridiagonal_QL(diagonal vector,subdiagonal vector,tridiagonal matrix)
to calculate the eigenvalues and eigenvectors of a real symmetric matrix.
1999/04/18 Added Jacobi(symmetric matrix,eigenvalue vector,eigenvector matrix)
to calculate the eigenvalues and eigenvectors of a real symmetric matrix.
1999/04/18 Added matrix = Hessenberg(symmetric matrix) to calculate an upper
Hessenberg matrix from a real symmetric matrix.
1999/04/18 Added Hessenberg_QR(symmetric matrix,real eigenvalue vector,imaginary
eigenvalue vector) to calculate the real and imaginary eigenvalues
of a real symmetric matrix.
Beta 21
1999/03/31 Modified Contour_Lines(data object[,use colour flag]) to optionally
use coloured lines in lieu of changing line types.
1999/03/31 Fixed a fatal bug in using @X,@Y,@Z variables introduced in beta 20.
1999/03/30 Fixed GFStrata overlay on PC
1999/03/30 Copy as metafile fixed on PC
Beta 20
1999/03/30 Added NFLD_Outline, NFLD_Drainage overlays
1999/03/30 Added NS_Outline, NS_Drainage, NB_Outline, NB_Drainage overlays
1999/03/29 Added Maine_Outline, Maine_Drainage overlays
1999/03/27 Modified Shade_Rectangles() to handle more than 32K rectangles.
1999/03/19 Added StrRep(srcstr,refstr,newstr) to replace chars in a char string.
1999/03/19 Modified StrPos() to optionally return all positions.
1999/03/19 Modified Expand() to expand character strings.
1999/03/19 Fixed bug in Aggregate new syntax version for values on cell boundary.
1999/03/16 Fixed bug in Mod() of negative real numbers.
1999/03/16 Fixed List_Dir() on PC to function similarily to Mac version.
Beta 19
1999/03/09 Fixed bug in Convert_XYP_to_Overlay().
1999/03/09 Replaced dc250, dc350, dc400, dc450, dc550, dc600, dc700 overlays on PC.
1999/03/09 Replaced dc800, dc1000, dc2000, dc3000 overlays on PC.
1999/03/09 Replaced limit20 overlay on PC with limit200.
1999/03/08 Current output device is now indicated with a check mark in the Use menu.
1999/03/02 Fixed bug in cat() of char matrices with null rows.
1999/03/02 Fixed bug in Matrix_Read() using alternate delimiters (header not rejected).
1999/02/24 Fixed bug in assigning data into @x,@y,@z.
1999/02/23 Fixed bug with multiple *´s in /* comments **/.
Beta 18
1999/02/17 Fixed bug in file open dialogs on PC [e.g. Illustrator_Output()].
Beta 17
1999/02/15 Fixed bug in Num() of character matrices.
1999/02/12 Fixed bug in Select() on character matrices.
1999/02/11 Changed GetView() and GetWind() to accept vectors.
1999/02/10 Fixed bug in printing of large character matrices on PC.
1999/02/09 Ravel("string") returns a copy of "string" rather than an error.
1999/02/08 Removed bug fix in F_Iterated(), (wasn´t really a bug).
1999/02/08 Fixed QEOS() bug when VPA flag used (was the bug).
1999/02/08 Next_Page() adds file numbers before ´.xxx´ extension in filename.
1999/02/08 Added Data_Dialog(8...) text field dialog to PC version.
1999/02/08 Added Data_Dialog(12...) check box dialog to PC version.
Beta 16
1999/02/05 Fixed bug in F_Iterated(), (affects iterated f option of QEOS model).
1999/02/05 Added Data_Dialog(13...) radio dialog to PC version.
1999/02/04 Vectors retrieved using Data_SQL() are now uniquely named (TIME -> TIME_).
Beta 15
1999/01/25 Fixed bug in Inside() which included coincident points as inside.
1999/01/22 Fixed bug in Debug() which crashed the application.
1999/01/22 Added Data_Dialog_Position() to PC version.
Beta 14
1999/01/08 Implemented v = Linear_Solve(matrix,vector) to solve linear equations.
1999/01/08 Implemented QEOSN(), variant of QEOS() using non-logged parameters.
1999/01/07 Implemented Polygon_Shade_Contours(polygon matrix,xyz data).
1999/01/04 Opening an existing file, closes the empty text editor window.
1998/12/10 Removed flicker when using selected text from editor window.
1998/12/09 Partially selected comment lines don´t crash the parser.
1998/11/20 Modified NLLS() to return a completion category code (0-4).
1998/10/30 Screen_Output() does not clear the screen now.
1998/10/29 Fixed bug in Linear_Interpolate() with descending x values.
Beta 13
1998/10/27 Modified Thompson_Bell w/optional commercial waa for yield.
1998/10/06 Fixed Grid() bug for ´reversed´ axes.
Beta 12
1998/09/01 Added List_Dir() to PC version.
1998/08/31 Fixed a bug in Convert_Illustrator_to_XYP().
1998/08/31 Added Create_Dir() to PC version.
Beta 11
1998/07/30 Fixed a rare bug in trim() with character matrices.
1998/07/30 Fixed a rare bug in PostScript_Output().
1998/08/21 Fixed Marker_Type(1) to graph window.
1998/08/21 Fixed premature termination of program introduced in beta 10.
Beta 10
1998/07/14 Modified Convert_XYP_to_Overlay() to accept MapGen format files.
Beta 9
1998/06/21 Pow() now works with all permutations of scalars and higher dimensional numbers.
1998/06/22 Added Convert to CR/LF menu item to allow conversion of Mac/unix text after opening in a window
1998/06/23 Keyword coloured script files (xxx.acn) can be parsed using Script_File().
1998/06/23 Fixed bug in beta 8 Grid and Grid_Cross menu items.
1998/06/23 Moved ´Keyword Colouring´ from the View to Format menu.
Beta 8
1998/06/11 Assigning a variable the same name as a function is disallowed.
1998/06/12 Assigning a function a value is disallowed.
1998/06/15 Variables and functions are shown in the status bar.
1998/06/16 Right clicking User functions shows the function in a new window.
1998/06/17 Right clicking built-in functions shows the documentation with Internet Explorer.
Betas 1-7
1998/02/10 Delete key in graph window enabled
1998/02/18 Fixed overflow bug in text editor window names
1998/02/19 Fixed prompt msg bug in save as file dialog
1998/02/19 Added Convert ... dialogs
1998/02/19 Inside() polygon can now be an integer matrix
1998/02/19 Cursor reset to wait after file dialogs
1998/02/20 Default text documents are now *.acn with rich text format
1998/02/23 Esc key now interrupts executing command.
1998/03/02 Printing from graph window
1998/03/02 Compatibility with version 8.15
1998/03/05 Fixed Illustrator Degree symbol incompatibility, changed ´Illust3.dic´
1998/03/05 Axis labels w/Mercator proj. display DD MM SS when necessary
1998/03/23 Keyword colouring is an option for the text windows
1998/04/24 Scaled_Symbols creates Pie Charts
1998/04/24 Colour_Legend labels colours
1998/04/24 Compatibility with version 8.16
1998/05/01 Bug fixed in Voronoi Polygons call sequence
1998/05/01 Delaunay Triangles now explictly clip to the data window
1998/05/01 ACONcmd.exe cmd line version implemented on PC for CGI and APL access
1998/05/01 Character_Height implemented in PC graph window
1998/05/25 Compatibility with version 8.17
1998/05/25 Added QNorm(x); Normal deviate Z of a given lower tail area of P.
1998/05/25 Added PNorm(x); Tail area of the standardised normal curve.
1998/05/25 Fixed Plot_Box_Whisker() x axis placement.
1998/05/25 Fixed Julian() processing of matrices.
1998/05/25 QuickTime Movie creation and playing
1998/05/25 Text is drawn in current colour in PC graph window
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Last Modified : 2003-11-19
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