Command Reference
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Chapter 4. Command Reference

The Main KFormula Window

The File Menu

File->New (Ctrl+N)

Creates a new KFormula document.

File->Open... (Ctrl+O)

Opens a previously saved document.

File->Open Recent

Displays a selection of recently opened documents.

File->Save (Ctrl+S)

Saves the document.

File->Save As...

Saves the document with a name you provide.

File->Reload

Reloads the more recently opened document.

File->Import

Imports formulas from other formats.

File->Export

Exports the current document in another format.

File->Mail...

Invokes KMail so you can email the file. The file is already attached to the email.

File->Print... (Ctrl+P)

Prints the document.

File->Print Preview...

Shows how the printed document will appear.

File->Document Information

Provides a dialog box where you can enter your name, email address and a short description about the document.

File->Close (Ctrl+W)

Closes the current document.

File->Quit (Ctrl+Q)

Quits KFormula.

The Edit Menu

Edit->Undo (Ctrl+Z)

Undoes an action. You can revert to the state that existed before your last change.

Edit->Redo (Ctrl+Shift+Z)

Undoes an undo. Reverse the action of Undo. This will restore the change you originally made.

Edit->Cut (Ctrl+X)

Cuts a highlighted piece of text from the KFormula screen.

Edit->Copy (Ctrl+C)

Copies a highlighted piece of text from the KFormula screen.

Edit->Paste (Ctrl+V)

Pastes the text you selected with Cut or Copy to the KFormula screen.

Edit->Select All (Ctrl+A)

Highlights all the text in the KFormula screen for either Cut or Copy.

Edit->Remove Enclosing Element (Ctrl+R)

Removes enclosing braces, brackets or absolute value bars. This action takes place on the braces just outside the cursor.

Edit->Convert to Greek (Ctrl+G)

Converts a Latin character to a Greek symbol.

Edit->Edit Formula String...

Brings up an editor where you can edit the existing formula.

See the Advanced editing section for details.

The Element Menu

Element->Add->Add Root

Inserts the square root.

Element->Add->Add Fraction

Inserts a fraction.

Element->Add->Add Bracket

Inserts a pair of brackets, that is, ( ). You can also just type ( to insert a pair of brackets.

Element->Add->Add Integral

Inserts the integral sign.

Element->Add->Add Sum

Inserts the summation sign. (sigma).

Element->Add->Add Product

Inserts the product sign.

Element->Add->Add Matrix...

Inserts a matrix. A dialog box pops up, with the default size being 3x3. You can specify the number of rows and columns in this box.

Element->Add->Add 1x2 Matrix

Inserts a two rowed column vector.

Element->Add->Add Overline

Inserts an overline in this box.

Element->Add->Add Underline

Inserts an underline in this box.

Element->Add->Add Multiline

Inserts a new line each time you type Enter in the square.

Element->Add->Add Upper Index (Ctrl+U)

Adds an upper index like so: .

Element->Add->Add Lower Index (Ctrl+L)

Adds a lower index: .

Note

See the Definite Integrals and Indices section for details about indices.

Element->Add->Add Negative Thin Space

Inserts a small reduced space, here between the o and the e:.

Element->Add->Add Thin Space

Inserts a small space.

Element->Add->Add Medium Space

Inserts a space that is one and a half times wider.

Element->Add->Add Thick Space

Inserts a double space.

Element->Add->Add Quad Space

Inserts a quadruple wide space.

Element->Matrix->Insert Column

Inserts a column in an existing matrix. The column is inserted where the cursor is at.

Element->Matrix->Append Column

Appends a column to an existing matrix. The column is appended on the right.

Element->Matrix->Remove Column

Removes a column from an existing matrix. Removal occurs where the cursor is positioned.

Element->Matrix->Insert Row

Inserts a row in an existing matrix. The row is inserted where the cursor is at.

Element->Matrix->Append Row

Appends a row to an existing matrix. The row is appended on the bottom.

Element->Matrix->Remove Row

Removes a row from an existing matrix. Removal occurs where the cursor is positioned.

Element->Size

Allows to set the size of the font (from 6 to 72).

Element->Left Delimiter

Allows insertion of various delimiters that is, (, {, and [.

Element->Right Delimiter

Allows insertion of various delimiters that is, ), }, and ].

Element->Insert Symbol (Ctrl+I)

Inserts the symbol, selected in the symbol toolbar.

The Settings Menu

Here you can choose how KFormula is configured. You can select the toolbars you want displayed or the type of fonts to be used.

Settings->Toolbars->File (KFormula)

Toggles the toolbar that contains clickable icons for new, open and save files. Print and print preview are here also.

Settings->Toolbars->Edit (KFormula)

Toggles the edit toolbar. Here are clickable icons for cut and paste as well as Undo and Redo.

Settings->Toolbars->Add (KFormula)

This toolbar contains all the mathematical elements such as Sum, Integral, Exponent etc.

Settings->Toolbars->Font (KFormula)

This toolbar contains the font settings (size, bold, italic, etc.).

Settings->Toolbars->Symbol (KFormula)

This toggles the combo box that contains Del, the partial derivative symbol, limit arrows, boolean operators and other mathematical symbols.

Settings->Toolbars->Matrix (KFormula)

This toggles the matrix toolbar. It contains clickable icons that pertain to matrix creation and editing.

Settings->Syntax Highlighting

Checking this item determines if the numbers will be displayed in color.

Configuring Shortcuts

The Settings->Configure Shortcuts... allows you to specify shortcuts.

Below is an example of how to configure a shortcut for a print preview.



  • Click on Custom.

  • Next click on the button Advanced >> and then Primary shortcut:.

  • Do Ctrl Space and the dialog should disappear. The shortcut is now entered.



Pressing the keys Ctrl Space now displays the print preview.

Configuring Toolbars

The Settings->Configure Toolbars... is used to add additional buttons to the toolbars.



  • To add a button to the File toolbar,



    make sure File <KOffice> is displayed in the top combo box.

  • Click on one of the items in the left hand pane. This item will now be highlighted to show that it has been selected.

  • Next click on the Right arrow button to place it in the right pane.

  • Click on Apply and then click on OK.

The new Item should be in the toolbar.

Configuring KFormula

The Settings->Configure KFormula... is where the font sizes and font styles are selected.

  • The Formula section allows you to select fonts and font highlight colors.

The Help Menu

Help->Tip of the Day

Opens the Tip of the Day dialog which displays a random tip about KFormula.

Help->KFormula Handbook (F1)

Invokes the TDE Help system starting at the KFormula help pages. (this document).

Help->What's This? (Shift+F1)

Changes the mouse cursor to a combination arrow and question mark. Clicking on items within KFormula will open a help window (if one exists for the particular item) explaining the item's function.

Help->Report Bug...

Opens the Bug report dialog where you can report a bug or request a “wishlist” feature.

Help->About KFormula

This will display version and author information.

Help->About TDE

This displays the TDE version and other basic information.

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