Using The E Key; Omitting The Multiplication Sign; Using The Answer Variable (Ans) - Casio ClassPad 330 User Manual

Classpad os version 3.03

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Using the e Key

Use the e key to input exponential values. You can also input exponential values using the

E key on the 9 and ) keyboards.

Examples: 2.54 × 10

Omitting the Multiplication Sign

You can omit the multiplication sign in any of the following cases.

• In front of a function

Examples: 2sin (30), 10log (1.2)

• In front of a constant or variable

• In front of an open parenthesis

Examples: 3(5 + 6), (a + 1)(b – 1)

Note that you must use a multiplication sign when the expression directly in front of the

open parenthesis is a literal variable. Example: ab (3 + b) must be written ab × (3 + b).

Otherwise, your input is considered to be in function notation (

• In front of the e key or E key (See "Using the e Key" above.)

• In front of a matrix or list

Examples: a {1, 2, 3}, 3 [[1, 2] [3, 4]]

Using the Answer Variable (ans)

Any time you execute a calculation in the Main application work area, the last result is

assigned automatically to a variable named "ans" (answer). You can even recall current "ans"

variable contents and input them into another calculation by tapping the D key as shown

Example: 123 + 456 = 579

789 – 579 = 210

210 ÷ 7 = 30

* Starting a calculation expression with +, −, ×, ÷, or ^ operator will cause the "ans" 　

variable to be inserted automatically to the left of the operator, even if you do not tap

the D key. For more information, see "Performing Continuous Calculations" on

Basic Calculations