User Guide
Table Of Contents
- iPhone User Guide
- Contents
- Chapter 1: iPhone at a Glance
- Chapter 2: Getting Started
- Chapter 3: Basics
- Chapter 4: Syncing and File Sharing
- Chapter 5: Phone
- Chapter 6: Mail
- Chapter 7: Safari
- Chapter 8: iPod
- Chapter 9: Messages
- Chapter 10: Calendar
- Chapter 11: Photos
- Chapter 12: Camera
- Chapter 13: YouTube
- Chapter 14: Stocks
- Chapter 15: Maps
- Chapter 16: Weather
- Chapter 17: Notes
- Chapter 18: Clock
- Chapter 19: Calculator
- Chapter 20: Compass
- Chapter 21: Voice Memos
- Chapter 22: iTunes Store
- About the iTunes Store
- Finding Music, Videos, and More
- Following Artists and Friends
- Purchasing Ringtones
- Purchasing Music or Audiobooks
- Purchasing or Renting Videos
- Streaming or Downloading Podcasts
- Checking Download Status
- Syncing Purchased Content
- Changing the Browse Buttons
- Viewing Account Information
- Verifying Downloads
- Chapter 23: App Store
- Chapter 24: Game Center
- Chapter 25: Settings
- Chapter 26: Contacts
- Chapter 27: Nike + iPod
- Chapter 28: iBooks
- Chapter 29: Accessibility
- Appendix A: Support and Other Information
- Apple iPhone Support Site
- Restarting and Resetting iPhone
- Backing Up iPhone
- Updating and Restoring iPhone Software
- Safety, Software, and Service Information
- Using iPhone in an Enterprise Environment
- Using iPhone with Other Carriers
- Disposal and Recycling Information
- Apple and the Environment
- iPhone Operating Temperature
- Index

log Returns the log base 10 of a value.
sin Calculates the sine of a value.
sin
-1
Calculates the arc sine of a value. (Available when the 2nd button is tapped.)
cos Calculates the cosine of a value.
cos
-1
Calculates the arc cosine of a value. (Available when the 2nd button is tapped.)
tan Calculates the tangent of a value.
tan
-1
Calculates the arc tangent of a value. (Available when the 2nd button is tapped.)
ln Calculates the natural log of a value.
log2 Calculates the log base 2. (Available when the 2nd button is tapped.)
sinh Calculates the hyperbolic sine of a value.
sinh
-1
Calculates the inverse hyperbolic sine of a value. (Available when the 2nd button
is tapped.)
cosh Calculates the hyperbolic cosine of a value.
cosh
-1
Calculates the inverse hyperbolic cosine of a value. (Available when the 2nd button
is tapped.)
tanh Calculates the hyperbolic tangent of a value.
tanh
-1
Calculates the inverse hyperbolic tangent of a value. (Available when the 2nd button
is tapped.)
e
x
Tap after entering a value to raise the constant “e” (2.718281828459045…) to the power
of that value.
2
x
Calculates 2 to the power of the displayed value. For example, 10 2
x
= 1024. (Available
when the 2nd button is tapped.)
Rad Changes the mode to express trigonometric functions in radians.
Deg Changes the mode to express trigonometric functions in degrees.
π Enters the value of π (3.141592653589793…).
EE An operator that multiplies the currently displayed value by 10 to the power of the next
value you enter.
Rand Returns a random number between 0 and 1.
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Chapter 19 Calculator










