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A variable falls under the category of "Python identifier". SUch an identifier must start with a letter (uppercase or lowercase) or an underscore, followed by zero or more letters, underscores, and digits. Note that Python is case-sensitive; for example, myvariable, MyVariable, and MYVARIABLE would be treated as three different variables.
Wiki User
∙ 11y ago
Wiki User
∙ 7y agoThere are no strict rules. Sometimes the first letter of the object represented by the variable is used eg m for mass, v for velocity. At other times, they are sequential letters of the alphabet, such as a, b, c or x, y, z. The variables may be letters from the Greek alphabet; they may be in upper case or lower case.
It is advisable not to use names which may be confused with numbers (depending on your handwriting). For various numbers, possible letters which may cash are:
0 and O
1 and I (upper case i) or l (lower case L)
2 and z
5 and S
6 and b
8 and B
9 and g (not very similar here but consider the letter as it is "normally" written.
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Rules in naming variables in programming?
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What are the naming rules in XML?
XML has no rules like html in regards to tags and naming tags, you write your own xml tags.
What is optional for python programming?
One optional part of python programming is the declaration of variables before use. In many languages, you must declare your variables before using them, but in python, you can simply set a variable equal to something and it will handle the type without your help.
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well on land the tiger but in the water the python rules.
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ribbons
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In algebraic equations, exponents can contain variables. They can be solved for by using logarithmic rules for exponents.
What are the rules of naming and finding chemical formulas?
You need a book, not an answer here for that question.
