• ← DivideBy
• → PreDecrement

Increment

WMA link

Increment[x]

x++

increments x by 1, returning the original value of x.

• • a = 1; a++

• • a

Increment a numeric value:

• • a = 1.5; a++

• • a

Increment a symbolic value:

• • y = 2 x; y++; y

Increment all values in a list:

• • x = {1, 3, 5}

x++; x
= {2, 4, 6}

Grouping of Increment, PreIncrement and Plus:

• • ++++a+++++2//Hold//FullForm

  • $$\mathrm{Hold}\left[\mathrm{Plus}\left[\mathrm{PreIncrement}\left[\mathrm{PreIncrement}\left[\mathrm{Increment}\left[\mathrm{Increment}\left[a\right]\right]\right]\right]\text{, }\text{2}\right]\right]$$

Compare with PreIncrement which returns the value before update.