Table 2-4 Shifted Function Mathematical Operations

KeysDescription

:p

Calculates sine.

 

 

 

:q

Calculates cosine.

 

 

 

:r

Calculates tangent.

 

 

 

:k

Calculates natural log.

 

 

 

:l

Calculates natural exponent to the power of x.

 

 

 

:m

Calculates square of x.

 

 

 

:n

Calculates square root.

 

 

 

:f

Executes the Random function. Returns a random number in the range 0 < x <1.

 

 

 

:g

Calculates factorial of x (where –253 < x < 253). The Gamma function is used to

 

 

calculate x! for non-integers or negative numbers.

 

 

:i

Calculates the reciprocal.

 

 

 

:d

In Chain or Algebraic mode, recalls the result of the last operation. In RPN mode,

returns the content of the Last Number variable.

 

 

:e

Rounds x to the number specified by the display format.

 

 

 

Random number

Press :fto generate a randomly distributed number between 0 and 1.

Type a number and press :$:fto store a new seed for random number generation.

The Math Menu

There are additional functions available in the Math menu. To open the Math menu, press :s. See Figure 8 for the menu map of the Math menu.

Mathematical Calculations 19

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HP 30b Professional, 20b Consultant Financial manual Random number, Math Menu
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