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Lyn Perrine 2025-03-22 22:14:06 -07:00
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source/2/2.4/2.4.3/Qalculate.rst
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@ -15,7 +15,7 @@ To copy text from Qalculate! select the text and press :kbd:`Control + C` or rig
To store a value in calculator memory left click the :guilabel:`MS` button. To later get the same value out of the calculator left click the :guilabel:`MR` button. To clear the memory stored in the calculator press the :guilabel:`MC` button.
To view only Text for the toolbar menus right click on the toolbar and select :menuselection:`Text Only`. To have text beside icons on the toolbar menus right click on the toolbar and select :menuselection:`Text Beside Icons`. To have a text underneath iconns on the toolbar menus right click on the toolbar and select :menuselection:`Text under icons`. To switch back to only showing icons on the toolbar menus right click and select :menuselection:`Icons Only`. To toggle showing the toolbar right click on the toolbar and check/uncheck :menuselection:`Show Toolbar`.
To view only Text for the toolbar menus right click on the toolbar and select :menuselection:`Text Only`. To have text beside icons on the toolbar menus right click on the toolbar and select :menuselection:`Text Beside Icons`. To have a text underneath icons on the toolbar menus right click on the toolbar and select :menuselection:`Text under icons`. To switch back to only showing icons on the toolbar menus right click and select :menuselection:`Icons Only`. To toggle showing the toolbar right click on the toolbar and check/uncheck :menuselection:`Show Toolbar`.
.. image:: qalculate-text-under-icons.png
@ -27,9 +27,9 @@ To bring up a percent calculator your can left click on the arrow next to :guila
To view dates in many different calendars left click on the :guilabel:`three bars` on the right and select :menuselection:`Calendar Conversion`. To view a periodic table left click on the :guilabel:`three bars` on the right and select :menuselection:`Periodic Table`. To view a list of keyboard shortcuts left click on the :guilabel:`three bars` on the right and select :menuselection:`Keyboard shortcuts`.
To force a minimum nubmer of decimal points after the result left click on the left most :guilabel:`two sliders` button and enter how many numbers after the decimal point in :menuselection:`Min decimals`. To have a maximum number after the decimal point left click on the left most :guilabel:`Two sliders` in the :menuselection:`Max decimals` field.
To force a minimum number of decimal points after the result left click on the left most :guilabel:`two sliders` button and enter how many numbers after the decimal point in :menuselection:`Min decimals`. To have a maximum number after the decimal point left click on the left most :guilabel:`Two sliders` in the :menuselection:`Max decimals` field.
To test an test if two things are equal you can type :kbd:`=` between two expressions or left click :guilabel:`x=` and then get true or false on if there is equality. To test if something is not equal long left click on :menuselection:`x= --> ≠` or type in :kbd:`≠` between two expressions. To test if one expression is less than the other expression type in :kbd:`<` or long left click on :menuselection:`x= --> <` between two expression. To test if annother expresion is less than or equal type in :kbd:`≤` or long left click on :menuselection:`x= --> ≤` between two expressions. To test if one expression is greater than another type :kbd:`>` or long click on :menuselection:`x= --> >` between two expresssions. To test if one expression is greater than or equal to another type :kbd:`≥` or long left click on :menuselection:`x= --> ≥`. Many of these get their own button on the alegebra keypad which can be switched to with the menu with 10 points :menuselection:`Keypad --> Algebra`.
To test an test if two things are equal you can type :kbd:`=` between two expressions or left click :guilabel:`x=` and then get true or false on if there is equality. To test if something is not equal long left click on :menuselection:`x= --> ≠` or type in :kbd:`≠` between two expressions. To test if one expression is less than the other expression type in :kbd:`<` or long left click on :menuselection:`x= --> <` between two expression. To test if another expression is less than or equal type in :kbd:`≤` or long left click on :menuselection:`x= --> ≤` between two expressions. To test if one expression is greater than another type :kbd:`>` or long click on :menuselection:`x= --> >` between two expressions. To test if one expression is greater than or equal to another type :kbd:`≥` or long left click on :menuselection:`x= --> ≥`. Many of these get their own button on the algebra keypad which can be switched to with the menu with 10 points :menuselection:`Keypad --> Algebra`.
To select the general keypad left click the 10 numbers :menuselection:`Keypad --> General`. To switch to a programming Keypad left click the 10 numbers :menuselection:`Keypad --> Programming`. To switch to an Algebra keypad left click the 10 dots :menuselection:`Keypad --> Algebra`. To have a custom keypad left click the 10 digits :menuselection:`Keypad --> Custom`. To add something to your custom keypad right click on an empty button. To toggle having no keypad press :kbd:`Control +K` or left click :menuselection:`Keypad --> None`. To hide the numberpad buttons uncheck the :menuselection:`Keypad --> Always show numberpad`. To just have the numberpad when not always shown select :menuselection:`Keypad --> Numberpad`.
@ -97,7 +97,7 @@ To view numbers in something other than the default base 10 press :kbd:`Control
To change what number base the answer is displayed in left click left most :guilabel:`slider button` and select the number base you want under :menuselection:`Result Base`. To change what numerical base to input expressions in left click the left most :guilabel:`slider button` and select a base under :menuselection:`Expression Base`.
The programing keybpad as menubutton for hexadecimal A-F and nubmer base switching which ccan get by the 10 point icon :menuselection:`Keypad --> Programming`.
The programming keypad as menubutton for hexadecimal A-F and number base switching which can get by the 10 point icon :menuselection:`Keypad --> Programming`.
Version
-------
@ -115,23 +115,23 @@ from the command line.
Customizing
-----------
To open the prefrences dialog for Qalculate! left click on the three bars :menuselection:`Menu --> Prefrences`. To change settings on how Qalculate! appears use the :guilabel:`Look & Feel` tab. To not use the system language check the :guilabel:`Ignore system language` checkbox and select the language in the :guilabel:`Language` menu. To allow multiple Qalculate! instances check the :guilabel:`Allow multiple instances` checkbox. To clear the history of Qalculate! on exit check the :guilabel:`Clear history on exit` checkbox. To change the maximum number of lines of history saved change the :guilabel:`Max history lines saved` field. To close Qalculate with the escape key check the :guilabel:`Close application with escape key` checkbox. To not use keyboard keys for Reverse Polish Notation uncheck the :guilabel:`Use keys for RPN` checkbox. To have the :kbd:`^` key be used for a bitwise XOR check the :guilabel:`Use caret for bitwise XOR` checkbox. To start Qalculate always on top of other windows check the :guilabel:`Keep above other windows` checkbox. To prevese the hieght of history in your window check the :guilabel:`Preserve history height` checkbox.
To open the preferences dialog for Qalculate! left click on the three bars :menuselection:`Menu --> Preferences`. To change settings on how Qalculate! appears use the :guilabel:`Look & Feel` tab. To not use the system language check the :guilabel:`Ignore system language` checkbox and select the language in the :guilabel:`Language` menu. To allow multiple Qalculate! instances check the :guilabel:`Allow multiple instances` checkbox. To clear the history of Qalculate! on exit check the :guilabel:`Clear history on exit` checkbox. To change the maximum number of lines of history saved change the :guilabel:`Max history lines saved` field. To close Qalculate with the escape key check the :guilabel:`Close application with escape key` checkbox. To not use keyboard keys for Reverse Polish Notation uncheck the :guilabel:`Use keys for RPN` checkbox. To have the :kbd:`^` key be used for a bitwise XOR check the :guilabel:`Use caret for bitwise XOR` checkbox. To start Qalculate always on top of other windows check the :guilabel:`Keep above other windows` checkbox. To preserve the height of history in your window check the :guilabel:`Preserve history height` checkbox.
To change what to show in the window title use the :guilabel:`Window title` menu. To change what to show on tooltips use the :guilabel:`Tooltips` menu. To change what Qt style to show in Qalculate! use the :guilabel:`Style` menu. To enable dark mode on Qalculate! check the :guilabel:`Dark mode` checkbox. To disable cursor blinking check the :guilabel:`Disable cursor blinking` checkbox. To not colorize the result uncheck the :guilabel:`Colorize result` checkbox. To not format the result uncheck the :guilabel:`Format result` checkbox. To use a custom font for the result check the :guilabel:`Custom result font` checkbox and then click the button on the right to select a font. To have a custom font for your expression check the :guilabel:`Custom expression font` checkbox and then click the button to the right to select the font. To have a custom font for your keypad check the :guilabel:`Custom keypad font` checkbox and then click the button on the right to choose your font. To choose a custom font for the rest of the application use the :guilabel:`Custom application font` checkbox and then press the button on the right to channge the font.
To change what to show in the window title use the :guilabel:`Window title` menu. To change what to show on tooltips use the :guilabel:`Tooltips` menu. To change what Qt style to show in Qalculate! use the :guilabel:`Style` menu. To enable dark mode on Qalculate! check the :guilabel:`Dark mode` checkbox. To disable cursor blinking check the :guilabel:`Disable cursor blinking` checkbox. To not colorize the result uncheck the :guilabel:`Colorize result` checkbox. To not format the result uncheck the :guilabel:`Format result` checkbox. To use a custom font for the result check the :guilabel:`Custom result font` checkbox and then click the button on the right to select a font. To have a custom font for your expression check the :guilabel:`Custom expression font` checkbox and then click the button to the right to select the font. To have a custom font for your keypad check the :guilabel:`Custom keypad font` checkbox and then click the button on the right to choose your font. To choose a custom font for the rest of the application use the :guilabel:`Custom application font` checkbox and then press the button on the right to change the font.
.. image:: qalculate-lookfeel.png
To have settings for how to format numbers use the :guilabel:`Numbers and Operators` tab. To output two complement in either binary or hexidecimal check the :guilabel:`Binary` checkbox or :guilabel:`Hexidecimal` checkbox next to :guilabel:`Two's complement output`. To change what input two's complement expects check the :guilabel:`Binary` or :guilabel:`Hexadecimal` checkbox next to :guilabel:`TWo complement input`. To change what bits to put in binary change the :guilabel:`binary bits` menu. To use lower case letters check the :guilabel:`Use lower case letters in non-decimal numbers` checkbox. To use special symbols for base 12 numbers check the :guilabel:`Use special duodecimal symbols` checkbox. To use a dot as a multiplication sign check the :guilabel:`Use dot as multiplication sign` checkbox.To use the unicode division slash chceck the :guilabel:`Use Unicode division slash in output` checkbox. To have logical operators spelled out in words check the :guilabel:`Spell out logical operators` checkbox. To display scientific notation with E instead of 10^n check the :guilabel:`Use E-notation instead of 10^n` checkbox.
To have settings for how to format numbers use the :guilabel:`Numbers and Operators` tab. To output two complement in either binary or hexidecimal check the :guilabel:`Binary` checkbox or :guilabel:`Hexidecimal` checkbox next to :guilabel:`Two's complement output`. To change what input two's complement expects check the :guilabel:`Binary` or :guilabel:`Hexadecimal` checkbox next to :guilabel:`Two complement input`. To change what bits to put in binary change the :guilabel:`binary bits` menu. To use lower case letters check the :guilabel:`Use lower case letters in non-decimal numbers` checkbox. To use special symbols for base 12 numbers check the :guilabel:`Use special duodecimal symbols` checkbox. To use a dot as a multiplication sign check the :guilabel:`Use dot as multiplication sign` checkbox.To use the unicode division slash check the :guilabel:`Use Unicode division slash in output` checkbox. To have logical operators spelled out in words check the :guilabel:`Spell out logical operators` checkbox. To display scientific notation with E instead of 10^n check the :guilabel:`Use E-notation instead of 10^n` checkbox.
To switch imaginary units to j check the :guilabel:`Use j as imaginary unit` checkbox. To use a comma as a decimal separator check the :guilabel:`Use comma as decimal separator` checkbox. To ignore commas in number check the :guilabel:`Ignore comma in numbers` checkbox. To indicate repeating decimals check the :guilabel:`Indicate repating decimals` checkbox. To have what you copy be unformated ASCII check the :guilabel:`Copy unformatted ASCII by default` checkbox. To change how to group digits change the :guilabel:`Digit grouping` menu. To automatically group digits when inputting them check the :guilabel:`Automatically group digits in input` checkbox. To change how to display intervals change the :guilabel:`Interval display` menu. To change how to round numbers change the :guilabel:`Rounding` menu. To chnage what form complex numbers take use the :guilabel:`Complex number form` menu.
To switch imaginary units to j check the :guilabel:`Use j as imaginary unit` checkbox. To use a comma as a decimal separator check the :guilabel:`Use comma as decimal separator` checkbox. To ignore commas in number check the :guilabel:`Ignore comma in numbers` checkbox. To indicate repeating decimals check the :guilabel:`Indicate repeating decimals` checkbox. To have what you copy be unformated ASCII check the :guilabel:`Copy unformatted ASCII by default` checkbox. To change how to group digits change the :guilabel:`Digit grouping` menu. To automatically group digits when inputting them check the :guilabel:`Automatically group digits in input` checkbox. To change how to display intervals change the :guilabel:`Interval display` menu. To change how to round numbers change the :guilabel:`Rounding` menu. To change what form complex numbers take use the :guilabel:`Complex number form` menu.
.. image:: qalculate-numops.png
To change your settings with Units and Currencies use the :guilabel:`Units & Currencies` tab. To disable units uncheck the :guilabel:`Enable units` checkbox. To not abbreviate names uncheck the :guilabel:`Abbreviate names` checkbox. To use binary prefixes for inforamtion units check the :guilabel:`Use binary prefixes for information units` checkbox. To change how to automatically convert units use the :guilabel:`Automatic unit conversion` menu. To convert to mixed units check the :guilabel:`Convert to mixed units` checkbox. To use automatic unit prefrixes use the :guilabel:`Automatic unit prefixes` menu. To use SI prefixes for everything check the :guilabel:`Enable all SI-prefixes` checkbox. To enable prefixes in unit denominators check the :guilabel:`Enable denominator prefixes` checkbox. To enable units when using phsyical constants check the :guilabel:`Enable units in physical constants` checkbox. To copy text without the units check the :guilabel:`Copy unformatted ASCII without units` checkbox. To change how to calculate Temperature use the :guilabel:`Temperature calculation` menu. To channge when to update exchange rates change the :guilabel:`Exchange rates updates` field.
To change your settings with Units and Currencies use the :guilabel:`Units & Currencies` tab. To disable units uncheck the :guilabel:`Enable units` checkbox. To not abbreviate names uncheck the :guilabel:`Abbreviate names` checkbox. To use binary prefixes for information units check the :guilabel:`Use binary prefixes for information units` checkbox. To change how to automatically convert units use the :guilabel:`Automatic unit conversion` menu. To convert to mixed units check the :guilabel:`Convert to mixed units` checkbox. To use automatic unit prefixes use the :guilabel:`Automatic unit prefixes` menu. To use SI prefixes for everything check the :guilabel:`Enable all SI-prefixes` checkbox. To enable prefixes in unit denominators check the :guilabel:`Enable denominator prefixes` checkbox. To enable units when using physical constants check the :guilabel:`Enable units in physical constants` checkbox. To copy text without the units check the :guilabel:`Copy unformatted ASCII without units` checkbox. To change how to calculate Temperature use the :guilabel:`Temperature calculation` menu. To change when to update exchange rates change the :guilabel:`Exchange rates updates` field.
.. image:: qalculate-unitscurrency.png
To change how Qalculate! parsing things use the :guilabel:`Parsing & Calculation` tab. To choose where to store expression status use the :guilabel:`Expression status` menu. To change how long it takes a tooltip to display change the :guilabel:`Status tooltip delay` menu. To change how long to delay calculating as you type use the :guilabel:`Calculate as you type delay` field. To change if you want to display parsed entries in the history change the :guilabel:`Expression in history` menu. To change in history the expression after calculation use the :guilabel:`Expression after calculation` menu. To automatically copy the result of your calcuations check the :guilabel:`Automatically copy result` checkbox. To change the parsing mode use the :guilabel:`Parsing mode` menu. To use simplified precentage calculation use the :guilabel:`Simplified percentage calculation` checkbox. To read precision check the :guilabel:`Read precision` checkbox. To use concise uncertainty input use the :guilabel:`Allow concise uncertainty input` checkbox. To limit implicit multiplication check the :guilabel:`Limit impliict multiplication` checkbox. To interpret any unrecognized symbol as a variable check the :guilabel:`Interpret unrecognized symbols as variables` checkbox. To change how to calculate interval change the :guilabel:`Interval calcuation` menu. To factor your answers check the :guilabel:`Factorize result` checkbox.
To change how Qalculate! parsing things use the :guilabel:`Parsing & Calculation` tab. To choose where to store expression status use the :guilabel:`Expression status` menu. To change how long it takes a tooltip to display change the :guilabel:`Status tooltip delay` menu. To change how long to delay calculating as you type use the :guilabel:`Calculate as you type delay` field. To change if you want to display parsed entries in the history change the :guilabel:`Expression in history` menu. To change in history the expression after calculation use the :guilabel:`Expression after calculation` menu. To automatically copy the result of your calculations check the :guilabel:`Automatically copy result` checkbox. To change the parsing mode use the :guilabel:`Parsing mode` menu. To use simplified percentage calculation use the :guilabel:`Simplified percentage calculation` checkbox. To read precision check the :guilabel:`Read precision` checkbox. To use concise uncertainty input use the :guilabel:`Allow concise uncertainty input` checkbox. To limit implicit multiplication check the :guilabel:`Limit implicit multiplication` checkbox. To interpret any unrecognized symbol as a variable check the :guilabel:`Interpret unrecognized symbols as variables` checkbox. To change how to calculate interval change the :guilabel:`Interval calculation` menu. To factor your answers check the :guilabel:`Factorize result` checkbox.
.. image:: qalculate-parsinngcalc.png