@ -19,16 +19,16 @@ To do simple arithmetic click the numbers and then press the sign for addition,
To make a number negative press the button that looks like a :guilabel:`+/-`. To insert decimals press the decimal point button which looks like a :guilabel:`.` when you get to the part which is less than a whole number. To clear input from Kcalc Press the button with a :guilabel:`C` on it. To group operations so they happen together use the parenthesis to make things grouped to gether for example 2*(2+3) would give the result of 10 because it would add 2 and 3 and then multiply by two.
To copy and answer out of Kcalc press :kbd:`control + c` or :menuselection:`edit --> copy` from the menu. To paste a number into Kcalc you can press :kbd:`control + v` or :menuselection:`edit --> paste` from the menu. To cut the text from Kcalc press :kbd:`control +x` or :menuselection:`edit --> cut` from the menu.
To copy and answer out of Kcalc press :kbd:`control + c` or :menuselection:`Edit --> Copy` from the menu. To paste a number into Kcalc you can press :kbd:`control + v` or :menuselection:`Edit --> Paste` from the menu. To cut the text from Kcalc press :kbd:`control +x` or :menuselection:`Edit --> Cut` from the menu.
To undo an operation press :kbd:`Control+Z` or :menuselection:`Edit --> Undo`. To redo an operation press :kbd:`Control+Shift+Z` or :menuselection:`Edit --> Redo`.
Scientific calculator mode advanced fuctionality
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If you want even more functionality of Kcalc there is also scientific mode which is acessed from :menuselection:`settings --> scientific mode` radio button. The button :guilabel:`1/x` takes takes 1 and divides it by the number currently on the calculator also known as taking the reciprocal. :guilabel:`x!` read x factorial will take the number X you entered and multiple each number going down to 1 for example 5! would multiply 5*4*3*2*1.
If you want even more functionality of Kcalc there is also scientific mode which is acessed from :menuselection:`Settings --> Scientific Mode` radio button. The button :guilabel:`1/x` takes takes 1 and divides it by the number currently on the calculator also known as taking the reciprocal. :guilabel:`x!` read x factorial will take the number X you entered and multiple each number going down to 1 for example 5! would multiply 5*4*3*2*1.
The x :superscript:`2` button will take a x*x and multiply it by itself or square x. The button with x :superscript:`y` will take x the number you have in will exponeniate x to the power of y. The x 10 :superscript:`y` will end up multiplying x by 10 to the power of y so for example to multiply 5 by 10 to the power of 3 entering in will give the answer of 5,000. If you want your own custom constant buttons check the checkbox for :menuselection:`Settings --> Constants Button`.
The x :superscript:`2` button will take a x*x and multiply it by itself or square x. The button with x :superscript:`y` will take x the number you have in will exponeniate x to the power of y. The x 10 :superscript:`y` will end up multiplying x by 10 to the power of y so for example to multiply 5 by 10 to the power of 3 entering in will give the answer of 5,000. If you want your own custom constant buttons check the checkbox for :menuselection:`Settings --> Constants Buttons`.
To change the unit that angles are measured in for triginometric units in Kcalc. Degrees take 360 to form a full circle while, 2Π radians form a full circle and 400 gradians form a full circle. The radio button for Deg is to select Degrees as the unit for angles, :guilabel:`Rad` selects radian as the unit of measurment of angles and :guilabel:`Grad` selects Gradians as the unit of measurement for angles. The :guilabel:`Sin` button takes what you have as the input and takes the trigonometric sine function of that value measured in the unit for angles you have selected. The :guilabel:`cos` button takes the cosine of the vlaue in the unit of angle you have selected. The :guilabel:`tan` button takes the tangent of the angle in the current units.
