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The most common uses of 'i' follow, however there are many and clarifying your question with context may allow a more useful answer:
'i' may be used as a general case when items are to be counted, e.g. "the ith member of a set", or in a summation where the iterating variable is commonly given as 'i'.
'i' may also be used as the unit vector in the direction of the first axis (commonly denoted 'x'), in which case it may be given in bold text or with decoration to denote it signifies a vector.
Finally, 'i' may be used to denote the imaginary part of a complex (or wholly imaginary) number, for example, C = 4 + 3i is a complex number with:
Re{C} = 4; Im{C} = 3
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Symbol for the math term area?
A capital A is usually used as a symbol for area in math.
What is the math symbol for corresponding sides?
The symbol is §
What is the math symbol for similarity?
Answer: = The symbol for Similarity is the Tilde, ~. It is NOT the equal symbol, =.
Who was the introducer of the math symbol e?
Euler created the symbol.
What is a variable expression in math?
a variable expression in math is a symbol that is in a sentence
What does this math symbol -6 and 6 mean?
"-6 and 6" is not a symbol!
What is the math sign for undefined?
The mathematical symbol for "undefined" is the infinity symbol.
What math symbol most resembles the devide symbol?
no i need help
What is the math symbol for is at most?
The inequality symbol for less than or equal to: ≤
Why the plus symbol in math?
The plus symbol, "+", is used to indicate an addition.
What is multiplication's math symbol?
x
Math symbol for force?
f
