HP 50G

Page B-7
 The e
x
key calculates the exponential function of x.
 The x
2
key calculates the square of x (this is referred to as the SQ
function).
 The ASIN, ACOS, and ATAN functions calculate the arcsine, arccosine,
and arctangent functions, respectively.
 The 10
x
function calculates the anti-logarithm of x.
 The keys
≠ , ≤ , and ≥ , are used for comparing real numbers.
 The ABS function calculates the absolute value of a real number, or the
magnitude of a complex number or of a vector.
 The USER function activates the user-defined keyboard menu.
 The S.SLV function activates the symbolic solver menu.
 The EXP&LN function activates the menu for substituting expressions in
terms of the exponential and natural logarithm functions.
 The FINANCE function activates a menu for financial calculations.
 The CALC function activates a menu of calculus functions.
 The MATRICES function activates a menu for creating and manipulation
of matrices.
 The CONVERT function activates a menu for conversion of units and
other expressions.
 The ARITH function activates a menu of arithmetic functions.
 The DEF key is used to define a simple function as a variable in the
calculator menu.
 The CONT key is used to continue a calculator operation.
 The ANS key recalls the last result when the calculator is in Algebraic
operation mode.
 The [ ], ( ), and { } keys are used to enter brackets, parentheses, or
braces.
 The # key is used to enter numbers in other than the active number
base.
 The infinity key
∞ is used to enter the infinite symbol in an expression.
 The pi key
π is used to enter the value or symbol for π (the ratio of the
length of a circumference to its diameter).
 The arrow keys, when combined with the left-shift key, move the cursor
to the first character in the direction of the key pressed.