Guide to Dealing with Double Subscripts

  • MHB
  • Thread starter Math Amateur
  • Start date
In summary, a double subscript is used in mathematical expressions or formulas to indicate indices or coefficients of variables or terms. To properly deal with double subscripts, parentheses or brackets should be used to clarify which terms are being subscripted. Double subscripts are not necessary or applicable in all mathematical equations, so it is important to understand the context and rules of the equation. Common mistakes to avoid when using double subscripts include using the same subscript for multiple terms and ensuring proper alignment and clarity. Double subscripts can also be used in scientific notation, but it is crucial to maintain consistency and clarity throughout the equation.
  • #1
Math Amateur
Gold Member
MHB
3,998
48
i have forgotten how to deal with double subscripts ...

Can someone please show how to get the following text to display properly"We could divide E_1, E_2, ... ... into two subsequences E_k_1, E_k_2, ... and E_h_1, E_h_2, ...
Help will be much appreciated ...

Peter
 
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  • #2
Hi Peter,

You should use braces, like $E_{k_1}$.
 
  • #3
you can write as

E_{x_{y}}

to get

$E_{x_{y}}$
 
  • #4
castor28 said:
Hi Peter,

You should use braces, like $E_{k_1}$.
Thanks for the help castor28 and kaliprasad ...

Peter
 

FAQ: Guide to Dealing with Double Subscripts

1. What is a double subscript?

A double subscript is a mathematical notation used to represent two variables or indices within the same expression or equation. It is typically written as a subscript below another subscript, or as a subscript and superscript combination.

2. How do you properly deal with double subscripts?

To properly deal with double subscripts, you must first identify the two variables or indices being represented. Then, you must determine the proper order in which they should be written based on the equation or expression. Finally, you must clearly indicate which variable or index each subscript corresponds to.

3. What are some common mistakes when dealing with double subscripts?

Some common mistakes when dealing with double subscripts include writing the subscripts in the incorrect order, not clearly indicating which subscript corresponds to which variable or index, and using the wrong notation (such as using a subscript instead of a superscript).

4. Are there any rules for simplifying double subscripts?

Yes, there are rules for simplifying double subscripts. For example, if the same variable or index appears in both subscripts, you can combine them by adding the exponents. Additionally, if the subscripts have a common factor, you can factor it out and write it as a single subscript.

5. In what fields of science are double subscripts commonly used?

Double subscripts are commonly used in fields of science such as physics, chemistry, and mathematics. They are often used to represent quantities that have both spatial and temporal components, or to express relationships between multiple variables in a single equation.

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