PopCalc v0.18a pre-alpha version

In this file you could find:

• I. Installation
  
• II. Quick tour
  
• III. Usage
  
  • III.1. The modes
    
  • III.2. Know functions & operators
    
  • III.3. Constants
    
  • III.4. Color window
    
  • III.5. Conversion window
    
  • III.6. Help window
    
• IV. Changes
  
• V. Know bugs
  
• VI. To do
  
• VII. Contact
  

I. Installation:

II. Quick tour:

III. Usage:

III.1. The modes:

III.2. Know functions & operators:

Functions:

abs(x) floor(x) ceil(x)

exp(x) ln(x)
log(x) => log10(x)
loga(x) ex: log5.55(x)
sqrt(x) rootn(x) ex: root3.5(x)

sin(x) cos(x) tan(x)
acos(x) asin(x) atan(x)
sinh(x) cosh(x) tanh(x)
+ in future: asinh,acosh,atanh

Operators:

x! (x must be a positive integer)
x^n
+ - / *
(/x) <=> 1/x
(-x) <=> -x
Vx use sqrt(x)
xEn x*10n ex:5E3 = 5 * 10^3 = 5000
no En, only xEn (no E2 but 1E2=100)
xEn° or x° (only numeric) use xEn*PI_180==> convert xEn from deg to rad (see "examples/Spirale degres.Math" example)
n in xEn,rootn(x) and a in lna(x) must be numericals numbers.

for all functions:

cos x => cos(x)
cos 5 or cos5 => cos(5)

but for log:

log 5 => log10(5)
log5 => error
log5 x => log5(x)

III.3. Constants:

PI
PI_2 (pi/2)
PI_4 (pi/4)
PI_180 (pi/180, used for deg to rad translation)
e (exp(1), Euler number)
Au (gold number)

III.4. Color window

In this window, the four columns shows the four components with:

• their name initial at the top
  
• their value (from 0 to 255) at the bottom, you could change them by clicking in the cases
• Between the two the color that will be affected if you move the cursor (little black bar for colors components ans red for alpha component). You could click directly at the desired color too.
  

• RGB (red/green/blue)
• CMY (cyan/magenta/yellow)
• HSV (hue/saturation/value)
• HSL (hue/saturation/luminance)
  
  In both modes, there is an alpha channel value.
  

III.5. Conversion window

Four informations are shown and oculd be changed:

• UDec: Unsigned decimal
• Dec: Signed decimal
• Hex: Hexadecimal
• Asc: ASCII

III.6. Help window

In this window you could find several parts:

• The modes and a short description.
• The know constants.
• The know functions and operators.
• E-mail to contact the author and URL to download last version.

IV. Changes:

v0.18a new features:(22dec97)

• alpha channel settings in color window.
• Color window is more independant and selectable from the new window menu. No you must d'n'd the color from the windowx to the button to change specific color.
• Help window with informations on the modes, constants, functions, operators, and contacts/download points.
• Conversion window with: unsigned decimal, signed decimal, hexadecimat, ascii conversion.

v0.17a new features:(27oct97)

• renamed PopCalc as promised in Beware for long time.
  
• New 'about' window with a (beautiful???) picture and hyperlinks to places where find the last version.
• no more dithering for color window in 32 bit screens.
• faster real time reaction for color window (multi-threaded).
• Color drag'n'drop to and from color window using PR2 protocol: FindData("RGBColor", 'RGBC', &rgb_color,&rgb_color_size);
  
• Color drag with protocol: FindData("color", B_RGB_COLOR_TYPE,&rgb_color,&rgb_color_size);
• Color d'n'd to text: rgb_color color = {<red value>,<green value>,<blue value>,<alpha value>};
• The T parameter now keep its value when you change a function.
• The polar and spherical functions names take latin characters temporary (better than bugs squares). r=rho (ray), a= theta (angle1), b = phi (angle 2).
• Dosen't cash more when deleting a function with del button, and some intern cleaning.

v0.16a new features:(21oct97)

• New color window with three components that show you the effect of your changes in RGB, CMY, HSV and HSL formats. Dithering for 8bit screen format.

v0.15a new features:(16oct97)

• ScrollBar for real time parameter now run.
• You could move the function with mouse again.
• The function window title show the name of the file.

v0.14a+ new features:(10oct97)

• drag'n'drop of files on the windows for open them.
• Open file menu re-enable.
• Quick reorganization of the html doc

v0.14a new features:(9oct97, first PR version)

• Quick and dirty port to PR some things don't work, other crash, but you can draw functiuons and use all modes.
  

v0.12a and 0.13a new features:(somwhere in springer and summer 97, PR-AA versions)

• I have lost these version, I don't remember their changes, have I to become supersticious???
  

v0.11a new features:(19mai97, perhaps the last DR8 version)

• Bug fixed: you can resize window with no axes, the function size follow
  
• More faster color mode
  
• More faster zoom
  
• Show scale on z axe in Spherical mode (bug on v0.010a)
  
• move and zoom the function view with mouse
  
• datas window resizable
  

v0.10a new features:(19mars97, after some examens)

• "Background App Only" flag of 0.09 removed
  
• RayTraced 4D-fractals icons
  
• µ(t),§(t),½(t) 3d spherical mode [alt-8]
  
• µ(t,u),§(t,u),½(t,u) 3d spherical mode [alt-9]
  
• Time parameter T (UPPERCASE) for all graphics modes, can be modified in real time with slider + Checkbox for Automatic/Manual Mode (automatic not active for T, and manual not active for others parameters).
  
• color(x,y) mode [alt-.] (original idea by Attila Mezei), trace fct in 256 colors.
  The Values are in [0;255]. try: 16*(1+cos x* sin y).
  In this mode, the parameters limits are the window limits like f(x) mode you can save the picture with print screen key and use it in your programs with a modified palette.
  
• the forgotten parenthesis crashing bug from V0.09a removed
  
• gold number constant name: old OR (gold in french), new: Au (chemical symbol of gold)
  

v0.09a new features:(1jan97)

• x(t),y(t),z(t) 3d mode
  
• x(t,u),y(t,u),z(t,u) 3d mode
  
• Show Axes CheckBox
  
• bug on power evaluation removed.
  
• graduation on all axes
  
• z axis direction corrected
  

v0.08a new features:(27dec96)

• fixe cut/copy/paste full line from editor bug (char ASCII 10)
  
• new constant:PI_180=PI/180 (x*PI_180 convert ¡->rad, x/PI_180 convert rad->¡)
  
• numerical writen numbers can be:18E1¡ or 180¡ ->3.14...(convert to rad)
  
• bugs on some case of Del function fixed.
  
• parameters correctly modified when load functions configurations.
  
• save, save as.
  
• icon for files
  
• f(x,y) (2d1/2) [ALT-5] (axes y and z are inverted sorry)
  

v0.07a new features:(24dec96)

• Special Xmas Icon
  
• Multiples functions
  
• load, functions configurations
  

v0.06a new features:(17dec96)

• In v0.05a more than one Couleur (Color in french) window can be opened when change mode function, it was a bug. It's removed and the window is now named Color.
  
• Color window is hidden in expression evaluation mode.
  

v0.05a new features:(16dec96)

• Faster update of functions.
  
• One litte precision bug from v0.04 is removed
  
• One icon with pixels and colors;-).
  
• The graph window is correctly updated when resized
  
• Choice of colors for background and functions(the graph is draw in 8bit)
  .

v0.04a new features:(9dec96)

• Ã(x) <=> sqrt(x)
  
• constants: PI, PI_2, PI_4, e, OR
  
• xEn: x*10^n
  
• arithmetic evaluation (= ALT-0)
  
• Polar functions (µ(t)=radius,(t=angle) ALT-3)
  
• Polar parametric functions (µ(t)=radius,§(t)=angle ALT-4)
  

v0.03a new features:(version five o'clock tea @ BeEurope, 6dec96)

• rootn (x) n basis root (usage: see log, root x->root3(x))
  
• 2 window: 1 for parameters +1 zoomable window for graph
  
• parametric functions
  
• pop-up menu: select f(x) ALT-1 / x(t),y(t) ALT-2
  

v0.02a/v0.01a new features:

• B_NAVIGABLE is set on for BTextControls navigation.
  
• when an error of range is made-> delete needless 0 on preview
  value (ex:10.00000->10.)
  
• when an error of f(x) is made -> preview f(x), and not f(x)=x.
  
• sinh,cosh,tanh in this text (active on v0.01a.
  

V. Know bugs:

• crash sometimes when you delete a function
• problems with the new text encoding system

VI. To do:

• A lot of things

VII. Contact: