E-27
Function Calculations
This section explains how to use the calculator’s built-in functions.
The functions available to you depends on the calculation mode
you are in. The explanations in this section are mainly about the
functions that are available in all calculation modes. All of the
examples in this section show operation in the COMP Mode
(N1).
• Certain function calculations may take some time to display
calculation results. Before performing an operation, be sure to wait
until execution of the current operation is complete. You can interrupt
an ongoing operation by pressing A.
k Pi (π) and Natural Logarithm Base e
You can input pi (π) or natural logarithm base e into a calculation.
The following shows the required key operations and the values this
calculator uses for pi (π) and e.
π = 3.14159265358980 (15(π))
e = 2.71828182845904 (S5(e))
k Trigonometric and Inverse Trigonometric
Functions
•The angle unit required by trigonometric and inverse trigonometric
functions is one specified as the calculator’s default angle unit.
Before performing a calculation, be sure to specify the default angle
unit you want to use. See “Specifying the Default Angle Unit” for
more information.
Appendix <#016> sin 30 = 0.5, sin
–1
0.5 = 30
k Hyperbolic and Inverse Hyperbolic
Functions
Pressing the w key displays a menu of functions. Press the number
key that corresponds to the function you want to input.
Appendix <#017> sinh 1 = 1.175201194, cosh
–1
1 = 0
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