Keyboard

List of numbers, operations and functions available from the keyboard:

Symbol:       Description:

 

2ndF   Activates the second symbol.

You can go directly to the second symbol of a button: press and hold the button.

 

3ndF   Activates the third symbol.

You can go directly to the third symbol of a button: press the button and slide your finger.

  

CLR    Clears the contents of the display.

 

BACK  Deletes the last symbol of the formula, or clears the symbol to the left of the cursor if the correction mode is on, or returns to the formula if the result is displayed.

 

DEL    Deletes the last symbol of the formula, or clears the symbol to the right of the cursor if the correction mode is on, or clears the display if a result is displayed.

 

F1      Formula button which is associated

-        with a formula, previously stored in

F12     the list of formulas, for rapid execution. F1 to F2 for VFCalcLite and F1 to F12 VFCalc.

 

V        Opens the list of variables.

 

V+      Creates a new variable with the result.

 

C       Opens the list of constants.

 

C+      Creates a new constant with the result.

 

F        Opens the list of formulas.

 

F+      Saves the displayed formula.

 

M       Symbol of memory.

 

M=     Save the displayed value into memory.

 

M+     Adds the displayed value to the value of the memory and save the new value into memory.

 

M-      Subtract the displayed value from the value of memory and save the new value into memory.

 

0-9     Numbers

 

⁰⁻⁹     Exponents

 

X¹     Raise to the power minus one (1/x).

 

        Root

Only = square root

Preceded by 'n' exponent = root 'nth'

 

n!      Factorial

 

PREF  Opens the preferences menu.

 

HIST   Opens the calculation history.

 

( )      Parentheses

 

%       Percent

 

eY      Base of the natural logarithm (constant) power Y.

 

LN      Natural logarithm

 

X10Y   Multiplied by power of ten.

 

LOG   Logarithm

 

SIN     Sinus

The reverse is obtained by adding exponent -1: SIN¹.

 

COS    Cosine

The reverse is obtained by adding exponent -1: COS¹.

 

TAN    Tangent

The reverse is obtained by adding exponent -1: TAN¹.

 

HYP    Transforms SIN, COS and TAN in

SINH, COSH and TANH (hyperbolic).

The reverse is obtained by adding exponent -1: SINH¹ COSH¹ TANH¹.

 

Π       PI (Constant)

 

×        Multiplication

 

÷        Division

 

+        Addition

 

-        Subtraction or negative sign

 

HELP  Opens help of VFCalc.

 

.        Decimal

 

=        End of formula

Saves the result in a variable.

 

ENTER Performs calculations.

 

The color of the keys text represents the groups of numbers, operations and functions. You can disable the color in the preference menu.

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