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PreDecrement (--)

--x
decreases the value of x by 1, returning the new value of x.
  • --x is equivalent to x=x-1.
EXAMPLESCLOSE ALL
Basic Examples   (1)
Decrement the value by one and return the new value:
Decrement the value by one and return the new value:
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Out[1]=
In[2]:=
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Out[2]=
Scope   (3)
Decrement a numerical value:
Decrement a symbolic value:
Decrement all values in a list:
Applications   (1)
Find the first integer below one million with a certain property:
Properties & Relations   (4)
Decrement and PreDecrement differ in the return value of the operation:
PreDecrement is a short form of this assignment:
PreDecrement is a special case of SubtractFrom:
Increment and PreIncrement are closely related operations:
Possible Issues   (1)
A variable to be decremented must have an initial value:
New in 1
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