# Subscripting for subscripts greater than 2

• Jun 25th 2011, 06:25 PM
Bernhard
Subscripting for subscripts greater than 2
In a recent post to MHF I tried to form the sum \$\displaystyle r_{2}\$\$\displaystyle c_{2}\$ + \$\displaystyle r_{1}\$\$\displaystyle c_{1}\$ only with the second set of subscripts equaling 7

However Latex always returned an error for all integer subscipts greater than 2

Bernhard
• Jun 25th 2011, 07:24 PM
Soroban
Re: Subscripting for subscripts greater than 2
Hello, Bernhard!

Quote:

In a recent post to MHF I tried to form the sum \$\displaystyle c_1\$ \$\displaystyle +\$ \$\displaystyle c_2\$ with subscripts greater than 2.

However Latex always returned an error.

Using [tex], it will not support any expression longer than \$\displaystyle c_1\$

We can produce the terms separately: .[tex]c_5[/tex] .\$\displaystyle \Rightarrow\;\;c_5\$
. . but this is very inefficient.

I recommend using [tex] tags.

[tex]c_1,c_2,c_3,c_4,\hdots[/tex] .\$\displaystyle \Rightarrow\;\;c_1,c_2,c_3,c_4,\hdots\$

• Jun 25th 2011, 07:41 PM
Bernhard
Re: Subscripting for subscripts greater than 2
Hello Soroban,

Thanks for your help - later I will try to learn how to use [tex] tags

\$\displaystyle c_{5}\$
• Jun 25th 2011, 07:43 PM
Bernhard
Re: Subscripting for subscripts greater than 2
Hello Soroban,

Thanks for your help - later I will try to learn how to use [tex] tags

\$\displaystyle r_{5}\$ + \$\displaystyle C_{5}\$
• Jun 25th 2011, 07:46 PM
Bernhard
Re: Subscripting for subscripts greater than 2
Hello Soroban,

Thanks for your help - later I will try to learn how to use [tex] tags

\$\displaystyle r_{8}\$
• Jun 26th 2011, 05:50 AM
Soroban
Re: Subscripting for subscripts greater than 2
Hello, Bernhard!

Quote:

Thanks for your help - later I will try to learn how to use [tex] tags

[tex]r_{8}[/tex] .\$\displaystyle r_8\$

[tex]r_2[/tex] . \$\displaystyle r_2\$

[tex]r_3[/tex] . \$\displaystyle r_3\$

[tex]r_4[/tex] . \$\displaystyle r_4\$

[tex]r_5[/tex] .\$\displaystyle r_5\$

Interesting . . . [tex] doesn't like subscripts greater than 4.

• Jun 26th 2011, 11:15 AM
Opalg
Re: Subscripting for subscripts greater than 2
Quote:

Originally Posted by Soroban
[tex]r_2[/tex] . \$\displaystyle r_2\$

[tex]r_3[/tex] . \$\displaystyle r_3\$

[tex]r_4[/tex] . \$\displaystyle r_4\$

[tex]r_5[/tex] .\$\displaystyle r_5\$

Interesting . . . [tex] doesn't like subscripts greater than 4.

It's picky with subscripted letters too:

[tex]r_n[/tex] . \$\displaystyle r_n\$

[tex]r_k[/tex] . \$\displaystyle r_k\$

[tex]r_w[/tex] . \$\displaystyle r_w\$

My theory is that the [tex] compiler, in its present debilitated state, can only render formulae that it has at an earlier time (before its troubles started) stored in some library of previous requests.