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What the error in writing this equation by latex?


What is a good way to stack things in an equation?Can I have a mathematical equation within a caption?How to put dots in front equation numbers in amsmathWriting partial differential equation like u_t=u_xxCan't generate png with Error: Erroneous nesting of equation structuresUndefined control sequence while writing equationLatex missread the equation and provides an errorMissing } inserted begin{equation}How can I align this equation in the center?Writing Equation in latex













3















begin{eqnarray*}
f(lambda x+(1−lambda)y)leq lambda f(x)+(1−lambda)f(y)
end{eqnarray*}


What the error in writing this equation by latex?



the oregenal equation










share|improve this question









New contributor




H M is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
















  • 3





    please always post a complete small document that produces the error and show the error you got. eqnarray should have more than one row, and each row should have two & but not doing that does not generate an error, just bad output.

    – David Carlisle
    4 hours ago






  • 1





    @Mico... Actually for Greeks the typo is inside lambda and not the opposite... So, it is a bug in the name... But you are right.

    – koleygr
    3 hours ago











  • @Mico also it's a typo added since I posted my answer, otherwise the error I showed would be different, I'll revert :(

    – David Carlisle
    3 hours ago
















3















begin{eqnarray*}
f(lambda x+(1−lambda)y)leq lambda f(x)+(1−lambda)f(y)
end{eqnarray*}


What the error in writing this equation by latex?



the oregenal equation










share|improve this question









New contributor




H M is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
















  • 3





    please always post a complete small document that produces the error and show the error you got. eqnarray should have more than one row, and each row should have two & but not doing that does not generate an error, just bad output.

    – David Carlisle
    4 hours ago






  • 1





    @Mico... Actually for Greeks the typo is inside lambda and not the opposite... So, it is a bug in the name... But you are right.

    – koleygr
    3 hours ago











  • @Mico also it's a typo added since I posted my answer, otherwise the error I showed would be different, I'll revert :(

    – David Carlisle
    3 hours ago














3












3








3








begin{eqnarray*}
f(lambda x+(1−lambda)y)leq lambda f(x)+(1−lambda)f(y)
end{eqnarray*}


What the error in writing this equation by latex?



the oregenal equation










share|improve this question









New contributor




H M is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












begin{eqnarray*}
f(lambda x+(1−lambda)y)leq lambda f(x)+(1−lambda)f(y)
end{eqnarray*}


What the error in writing this equation by latex?



the oregenal equation







equations






share|improve this question









New contributor




H M is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









New contributor




H M is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question








edited 3 hours ago









David Carlisle

493k4111371885




493k4111371885






New contributor




H M is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked 4 hours ago









H MH M

162




162




New contributor




H M is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





H M is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






H M is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.








  • 3





    please always post a complete small document that produces the error and show the error you got. eqnarray should have more than one row, and each row should have two & but not doing that does not generate an error, just bad output.

    – David Carlisle
    4 hours ago






  • 1





    @Mico... Actually for Greeks the typo is inside lambda and not the opposite... So, it is a bug in the name... But you are right.

    – koleygr
    3 hours ago











  • @Mico also it's a typo added since I posted my answer, otherwise the error I showed would be different, I'll revert :(

    – David Carlisle
    3 hours ago














  • 3





    please always post a complete small document that produces the error and show the error you got. eqnarray should have more than one row, and each row should have two & but not doing that does not generate an error, just bad output.

    – David Carlisle
    4 hours ago






  • 1





    @Mico... Actually for Greeks the typo is inside lambda and not the opposite... So, it is a bug in the name... But you are right.

    – koleygr
    3 hours ago











  • @Mico also it's a typo added since I posted my answer, otherwise the error I showed would be different, I'll revert :(

    – David Carlisle
    3 hours ago








3




3





please always post a complete small document that produces the error and show the error you got. eqnarray should have more than one row, and each row should have two & but not doing that does not generate an error, just bad output.

– David Carlisle
4 hours ago





please always post a complete small document that produces the error and show the error you got. eqnarray should have more than one row, and each row should have two & but not doing that does not generate an error, just bad output.

– David Carlisle
4 hours ago




1




1





@Mico... Actually for Greeks the typo is inside lambda and not the opposite... So, it is a bug in the name... But you are right.

– koleygr
3 hours ago





@Mico... Actually for Greeks the typo is inside lambda and not the opposite... So, it is a bug in the name... But you are right.

– koleygr
3 hours ago













@Mico also it's a typo added since I posted my answer, otherwise the error I showed would be different, I'll revert :(

– David Carlisle
3 hours ago





@Mico also it's a typo added since I posted my answer, otherwise the error I showed would be different, I'll revert :(

– David Carlisle
3 hours ago










1 Answer
1






active

oldest

votes


















5














documentclass{article}

begin{document}
begin{eqnarray*}
f(q x+(1−lambda)y)leq lambda f(x)+(1−lambda)f(y)
end{eqnarray*}
end{document}


produces the error



! Package inputenc Error: Unicode character − (U+2212)
(inputenc) not set up for use with LaTeX.

See the inputenc package documentation for explanation.
Type H <return> for immediate help.
...

l.5 f(q x+(1−
lambda)y)leq lambda f(x)+(1−lambda)f(y)
?


use an ascii minus sign - not −



Also you should use [...] not eqnarray* for a single line equation with no alignment points.






share|improve this answer



















  • 1





    thanks a lot it run with me ...............................................................................................................thanks

    – H M
    4 hours ago











  • @HM If this response answers your question, could you accept it? (Press the green checkbox next to the voting buttons to do that.)

    – bradrn
    2 mins ago











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









5














documentclass{article}

begin{document}
begin{eqnarray*}
f(q x+(1−lambda)y)leq lambda f(x)+(1−lambda)f(y)
end{eqnarray*}
end{document}


produces the error



! Package inputenc Error: Unicode character − (U+2212)
(inputenc) not set up for use with LaTeX.

See the inputenc package documentation for explanation.
Type H <return> for immediate help.
...

l.5 f(q x+(1−
lambda)y)leq lambda f(x)+(1−lambda)f(y)
?


use an ascii minus sign - not −



Also you should use [...] not eqnarray* for a single line equation with no alignment points.






share|improve this answer



















  • 1





    thanks a lot it run with me ...............................................................................................................thanks

    – H M
    4 hours ago











  • @HM If this response answers your question, could you accept it? (Press the green checkbox next to the voting buttons to do that.)

    – bradrn
    2 mins ago
















5














documentclass{article}

begin{document}
begin{eqnarray*}
f(q x+(1−lambda)y)leq lambda f(x)+(1−lambda)f(y)
end{eqnarray*}
end{document}


produces the error



! Package inputenc Error: Unicode character − (U+2212)
(inputenc) not set up for use with LaTeX.

See the inputenc package documentation for explanation.
Type H <return> for immediate help.
...

l.5 f(q x+(1−
lambda)y)leq lambda f(x)+(1−lambda)f(y)
?


use an ascii minus sign - not −



Also you should use [...] not eqnarray* for a single line equation with no alignment points.






share|improve this answer



















  • 1





    thanks a lot it run with me ...............................................................................................................thanks

    – H M
    4 hours ago











  • @HM If this response answers your question, could you accept it? (Press the green checkbox next to the voting buttons to do that.)

    – bradrn
    2 mins ago














5












5








5







documentclass{article}

begin{document}
begin{eqnarray*}
f(q x+(1−lambda)y)leq lambda f(x)+(1−lambda)f(y)
end{eqnarray*}
end{document}


produces the error



! Package inputenc Error: Unicode character − (U+2212)
(inputenc) not set up for use with LaTeX.

See the inputenc package documentation for explanation.
Type H <return> for immediate help.
...

l.5 f(q x+(1−
lambda)y)leq lambda f(x)+(1−lambda)f(y)
?


use an ascii minus sign - not −



Also you should use [...] not eqnarray* for a single line equation with no alignment points.






share|improve this answer













documentclass{article}

begin{document}
begin{eqnarray*}
f(q x+(1−lambda)y)leq lambda f(x)+(1−lambda)f(y)
end{eqnarray*}
end{document}


produces the error



! Package inputenc Error: Unicode character − (U+2212)
(inputenc) not set up for use with LaTeX.

See the inputenc package documentation for explanation.
Type H <return> for immediate help.
...

l.5 f(q x+(1−
lambda)y)leq lambda f(x)+(1−lambda)f(y)
?


use an ascii minus sign - not −



Also you should use [...] not eqnarray* for a single line equation with no alignment points.







share|improve this answer












share|improve this answer



share|improve this answer










answered 4 hours ago









David CarlisleDavid Carlisle

493k4111371885




493k4111371885








  • 1





    thanks a lot it run with me ...............................................................................................................thanks

    – H M
    4 hours ago











  • @HM If this response answers your question, could you accept it? (Press the green checkbox next to the voting buttons to do that.)

    – bradrn
    2 mins ago














  • 1





    thanks a lot it run with me ...............................................................................................................thanks

    – H M
    4 hours ago











  • @HM If this response answers your question, could you accept it? (Press the green checkbox next to the voting buttons to do that.)

    – bradrn
    2 mins ago








1




1





thanks a lot it run with me ...............................................................................................................thanks

– H M
4 hours ago





thanks a lot it run with me ...............................................................................................................thanks

– H M
4 hours ago













@HM If this response answers your question, could you accept it? (Press the green checkbox next to the voting buttons to do that.)

– bradrn
2 mins ago





@HM If this response answers your question, could you accept it? (Press the green checkbox next to the voting buttons to do that.)

– bradrn
2 mins ago










H M is a new contributor. Be nice, and check out our Code of Conduct.










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H M is a new contributor. Be nice, and check out our Code of Conduct.












H M is a new contributor. Be nice, and check out our Code of Conduct.
















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