Hyperbolic Functions

With x in the display:

To Calculate:

Press:

 

 

Hyperbolic sine of x (SINH).

{O

Hyperbolic cosine of x (COSH).

{R

Hyperbolic tangent of x (TANH).

{U

Hyperbolic arc sine of x (ASINH).

{{M

Hyperbolic arc cosine of x (ACOSH).

{{P

Hyperbolic arc tangent of x (ATANH).

{{S

 

 

Percentage Functions

The percentage functions are special (compared with zand q) because they preserve the value of the base number (in the Y–register) when they return the result of the percentage calculation (in the X–register). You can then carry out subsequent calculations using both the base number and the result without reentering the base number.

To Calculate:

Press:

 

 

x% of y

y ‘x Q

Percentage change from y to x. (y0)

y ‘x T

Example:

Find the sales tax at 6% and the total cost of a $15.76 item.

Use FIX 2 display format so the costs are rounded appropriately.

Keys:

Display:

Description:

{%} 2



Rounds display to two decimal

 

 

places.

15.76 ‘

) 

 

6 Q

) 

Calculates 6% tax.

4–6Real–Number Functions