Calculator

How to use it

• Build the whole calculation in the box, for example 2 + 3 × (4 − 1)^2, then press =.
• AC clears everything. ⌫ deletes the last character.
• Ans inserts the last answer, so you can carry on from it.
• On a keyboard, use * for multiply, / for divide and ^ for powers.

The keys

Key	What it does	Example
^	Power	2^10 = 1024
√	Square root	√(144) = 12
!	Factorial	5! = 120
%	Percent (divide by 100)	25% = 0.25
log	Logarithm, base 10	log(1000) = 3
ln	Natural logarithm, base e	ln(e) = 1
sin cos tan	Trigonometry	sin(30) = 0.5 in degrees
π e	The constants 3.14159… and 2.71828…	2π = 6.28318…

Typing asin, acos, atan or abs on a keyboard also works.

Order of operations

The calculator works the way mathematics is written: brackets, then powers, then × and ÷, then + and −. A number written directly before a bracket or a constant is multiplied: 2(3 + 1) is 8.

A minus sign in front of a power applies after the power: -2^2 is −4. Write (-2)^2 to get 4.

Limits

• Answers are shown to 12 significant figures.
• Factorials work for whole numbers from 0 to 170. Larger results are too big for a computer’s standard number type.
• Dividing by zero, and operations with no real answer such as √(−1), show a message.