[Libreoffice-bugs] [Bug 35444] New: Feature Request: Math Catalog Function

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=35444

           Summary: Feature Request: Math Catalog Function
           Product: LibreOffice
           Version: LibO 3.3.1 release
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Formula editor
        AssignedTo: libreoffice-bugs at lists.freedesktop.org
        ReportedBy: david.baxendale at gmail.com


Most of my documents contain a large number of equations and I think it would
be a good feature of Math to allows users to catalog equations so that one can
just click on a "cataloged" equation and load it into the existing document.
this could just be a simple ODT file similar to that shown below or a system
that is similar to the Bibliography system.


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;                                                                              
      ;
;        WordPerfect Office 2000 Default Equation Presets File                 
;
;        =====================================================                 
;
;                                                                              
       ;
;         Format of the Equation Presets File :                               ;
;                                                                              
       ;
;         <$E  ..........          ,,          ............    >            ;
;         ^       ^                ^                  ^        ^            ;
;         |       |                |                  |        |            ;
;         |       |                |                  |        |            ;
;         | Text describing    Description       Actual EQN    |            ;
;         |   the preset         and EQN          text for     |            ;
;         |                     separator        the preset    |            ;
;         |                                                    |            ;
;         |                                                    |           ;
;          ----------  Standard markup for equations ----------            ;
;                                                                              
      ;
;      Notes :                                                                 
     ;
;              1. Two successive commas cannot appear in the               ;
;                 description string                                          
;
;              2. All the ">" and "<" (except the ones used for the      ;
;                 markup) characters are always in pairs                      ;
;              3. ";" is used for comments. Comments can appear only     ;
;                 outside of an equation markup i.e. outside <$E ... >   ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

<$EBayes's theorem,,
Pr(B sub j~|~A) ~=~ { Pr(B sub j~)Pr(A | B sub j~) } over 
{ sum Pr(B sub i~)Pr(A | B sub i~) }
>

<$EBernoulli's equation,,
dy^/^dx ~+~ yf(x) ~=~ y sup n g(x)
>

<$EBessel functions,,
J sub n (z) ~=~ 1 over pi int from 0 to pi { cos (nt - z ^sin t) dt } = 
sum from {r = 0} to inf { {{(-1)} sup r} over 
{r! ~ GAMMA (n ~+~ r ~+~ 1) } } ~ { left ( z over 2 right ) } sup {n ~+~ 2r}
>

<$EBessel's equation,,
z sup 2 d sup 2 y  ^/^ d z sup 2 ~~+~~ z ~ dy ^/^ dz ~+~ 
(z sup 2 ~-~ n sup 2~)y ~~=~~ 0
>

<$EBinomial expansion,,
{(1 ~+~ x)} sup n ~->>~ 1 ~+~ nx ~+~ [n(n ~-~ 1) ^/^ 2!] x sup 2
~+~ [n(n ~-~ 1)(n ~-~ 2) ^/^ 3!] x sup 3 ~+~~~ ...
>

<$ECauchy-Schwarz inequality ( for integrals ),,
{left ( { int {[f(x)g(x)] ^ dx } } right )} sup 2 ~~ <<= ~~ 
left ( { int  {{[f(x)]} sup 2} dx } right ) ~~  
left ( { int  {{[g(x)]} sup 2} dx } right )
>

<$ECauchy-Schwarz inequality ( for sums ),,
{left ( sum (a sub i b sub i ) right )} sup 2 ~~<<=~~ 
left ( sum a sub i sup 2  right ) ~~~ left ( sum b sub i sup 2  right )
>

<$ECauchy-Schwarz inequality ( for sums, vector form ),,
{( fat a cdot fat b )} sup 2 ~~<<=~~ ( fat a cdot fat a ) ~~ 
( bold b cdot bold b )
>

<$EEuler's formula,,
GAMMA (z) ~=~ lim from { n ->> inf }{ n! ~ n sup z } over 
{z(z+1)(z+2)~~...~~(z+n)}~~~(z ~!=~0, -1, -2, ... )
>

<$EEuler's infinite product,,
1 over { GAMMA (z) } ~=~ ze sup { gamma z } PI from { n = 1 } to inf 
left [ left ( 1 ~+~ z over n right ) e sup { -z ^/^ n } right ] 
~~~~~~~~~ left ( left | z right | << inf  right )
>

<$EEinstein's equation,,
E ~=~ m c sup 2
>

<$ELaplace's equation,,
partial sup 2 italic bold V ^/^ partial x sup 2 ~~+~~ 
partial sup 2 italic bold V ^/^ partial y sup 2 ~~+~~ 
partial sup 2 bold italic V ^/^ partial z sup 2 ~~~=~~~ 0
>

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