I've had a hard look for answers to my problem but haven't managed to find any. This is driving me nuts.

    \underline{Copper:} \[3.142\times \(2.48\times \10^-^3)^\frac{2}{4}=4.83\times \10^-^6m^2\]

    \underline{Error\%:}  \[2(\frac{0.01}{2.48}\times \100)=0.81\%\]

    \underline{Copper-Nickel:} \[3.142\times \(2.2\times \10^-^3)^\frac{2}{4}=3.80\times \10^-^6m^2\]

    \underline{Error\%:} \[2(\frac{0.01}{2.20}\times \100)=0.90\%\]

I'm trying to get these equations to display in my report but I keep getting:

Bad math environment delimiter. \underline{Copper:} \[3.142\times \(


Undefined control sequence. ...ne{Copper:} \[3.142\times \(2.48\times \1


Double superscript. ...opper:} \[3.142\times \(2.48\times \10^-^

all over the place. I'm a total newbie at latex and this is the last thing I need to nail before I can submit my report but I cannot for the life of me figure out what is wrong. Any help appreciated.


Oliver R

  • 1
    Please, show as your code as small complete document starting with \documentclass{...} nd ending with \end{documenn}, which cause your headache. From erors I suspect that you have somewhere wrongly nested math environments. And, welcome to TeX.SE
    – Zarko
    Oct 23 '16 at 23:32
  • 1
    Replace ( and ) with \left ( and \right) Oct 23 '16 at 23:33
  • 1
    In 3.142\times \(2.48\times you have \(, which means math mode. We can deduce, that you simply want ( here. Oct 23 '16 at 23:39
  • 1
    @ScottSeidman -- \left and \right are not needed here. and in general, they should usually be avoided; see Replace regular parenthesis with stretching versions Oct 24 '16 at 0:03

There are a few issues with the code, taking the first line, what you probably want is \underline{Copper:} \[3.142\times (2.48 \times 10^{-3})^{\frac{2}{4}}=4.83\times 10^{-6}m^2\].

enter image description here

You have some \1 which is not a defined command - numbers can be written freely and not as macros, and a \( which starts inline maths environment which you don't want as \[ has already started a display maths environment. Finally a^2 will print a superscript two, but a^2^3 will not print 23 as superscript, what you are looking for is not 10^-^3 but 10^{-3}.

For the purpose of printing units you may want to look into the siunitx package.

  • Oh you beaut. That's solved it perfectly. Thanks a million. Oct 23 '16 at 23:53
 {\underline{Copper:}} \[3.142\times\left ( 2.48 \times ^{-3} 
        \right)^{\frac{2}{4}}=4.83 \times 10^{-6} m^2\]

  \underline{Error\%:}  \[2\left(\frac{0.01}{2.48}\times 100\right)=0.81

 {\underline{Copper-Nickel:}} \[3.142\times \left(2.2\times 
   10{-^3}\right)^{\frac{2}{4}}=3.80\times 10^{-^6}m^2\]

  {\underline{Error\%:}} \[2(\frac{0.01}{2.20}\times 100)=0.90\%\]
  % I hope this corrected version works for you.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.