Examples of Physics Notation with physPad®

The following examples illustrate entry of some common expressions.

Expression

Do this

To display this

An expression with numbers and subscripted variables

  1. Type 1/2 and press RIGHT ARROW
  2. Type m_2 and press RIGHT ARROW
  3. Type +4m_3 

1 2 m 2 + 4 m 3

Set notation with fractions

  1. Type (1/9 and press RIGHT ARROW
  2. Type ,2 and press SHIFT + LEFT ARROW to select the 2
  3. Type /7 and press RIGHT ARROW
  4. Type ,3 and press SHIFT + LEFT ARROW to select the 3
  5. Type /5
1 9 2 7 3 5

A square root

  1. Type sqrt

    The square root symbol is created.

  2. Type gh

g h

A cube root

  1. Click Operations > nth root button
  2. Type 3 and press RIGHT ARROW
  3. Type x
  4. Type m_1 and press RIGHT ARROW
  5. Type m_2 and press RIGHT ARROW
  6. Type m_3 and press RIGHT ARROW

m 1 m 2 m 3 3

An expression involving Euler's number

  1. Click Operations > Euler's number button 
  2. Type 2 

e 2

An expression involving hbar (ħ)

  1. Type 3 
  2. Click Symbols > h-bar button 
  3. Type ^2 

3 ħ 2

A vector in hatted i-j-k form

  1. Type 5 
  2. Click Vectors > hat button 
  3. Type i and press RIGHT ARROW
  4. Type +24 
  5. Click Vectors > hat button 
  6. Type j and press RIGHT ARROW
  7. Type +4 
  8. Click Vectors > hat button 
  9. Type k 

5 ı ^ + 24 ȷ ^ + 4 k ^

A vector in vector bracket form

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

12 15 22

A vector in bold i-j-k form

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

5 i + 24 j + 4 k