General Tips
- Numbers can be copied from and pasted into the display tapping on the display to select it, and using the "Copy" and "Paste" menu items.
- For unary functions, such as x², eˣ, sin, log, first enter the operand (number, constant, or the variable "x"), then click the function button.
- Tap ◴ to show calculation history.
- Tap ⚙ to show settings.
- Tap ⓘ for more information.
Special Buttons
- Backspace button: Deletes the last entered digit during number entry. If not actively entering a number, the backspace button steps backward in the calculation, deleting the last entered number or operation. Press and hold erases the current calculation.
- Constant button: Enters the currently displayed constant. Press and hold this button to reveal and select other constants. Tap "Edit" to edit the constants or add your own (only available in the Premium version).
- Variable button: Enters the "x" variable for equations, similar to entering a constant or number. For example, to enter the equation "3 + sin(x) =", tap the buttons "3" "+" "x" "sin" "=" in that order. To enter "x² =", tap the buttons "x" "x²" "=".
- Set Variable Value button: Allows entry of a value for the variable. After entering a complete equation (including =), you can enter a number and tap this button to set the value of x, and the result of the equation will be calculated. For example, after entering the equation "x² =", enter 4 and tap →x , and 16 will be displayed. Enter 8 and tap →x, and 64 will be displayed. This is convenient to quickly calculate the value of an equation for multiple different variable values.
- Graph button: Graphs the currently entered equation. Press and hold this button to graph multiple equations simultaneously (requires Premium version).
- Unit Conversion buttons (℉→℃, in→cm, lb→kg): Press and hold to reveal and select other conversions. The 2ᴺᴰ button inverts the currently displayed conversions.
Graphing
Single equation: Enter an equation, and tap the Graph button.
Multiple equations: GraphCalcPro2Go keeps a list of the last 4 graphed equations. To access the list, press and hold the Graph button. Each graphed equation is added to the top of the list. For example, enter sin(x) =, and click the Graph button. Then tap "Done" to dismiss the graph. Next enter cos(x) =, and press and hold the Graph button. A pop-up will be displayed with the list of the equations. The list can be rearranged and edited. Tap the "Graph" button in this pop-up, and GraphCalcPro2Go will graph the equations in the list simultaneously, autoscaling to the first equation in the list. Available with Premium version.
Customization: Graph colors and line thickness can be changed in the Settings page.