Examples of Math Notation with calcPad

The following examples illustrate entry of some common expressions.

Expression

Do this

To display this

A simple expression with integers

Type 2x+52500

2x + 52500

A polynomial with a fractional coefficient
  1. Type 1/2 and press the RIGHT ARROW key
  2. Type x^2 and press the RIGHT ARROW key
  3. Type +4x+2
image: one-half x squared plus 4x plus 2

A simple inequality

Type x>=-4

x ≥ -4

A square root

Type sqrt(x

image: square root of x

A cube root
  1. Click Functions > image: nth root button
  2. Type 3 and press the RIGHT ARROW key
  3. Type x
image: cube root of x

An expression involving pi and Euler's number
  1. Type pi+
  2. Click Functions > image: Euler's number button
  3. Type 2

π + e2

The natural logarithm of an absolute value

Type either of the following:

ln(|x|)
ln(abs(x))

ln(|x|)

A complex number

  1. Type 2+3
  2. Click image: imaginary unit button

2 + 3i

A vector in vector bracket form

  1. Click Vectors > image: vector brackets button
  2. Type 12, 15, 22

〈12, 15, 22〉

A vector in i-j-k form

  1. Type 5
  2. Click Vectors > image: i button
  3. Type +24
  4. Click Vectors > image: j button
  5. Type +4
  6. Click Vectors > image: k button

5i + 24j + 4k

Parent topic: Answer calcPad Questions
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