Code for non-zero variables

Hi,
Does anyone know the code for only taking into account the variable if it is not equal to zero?
I mean, I have an equation and I only want it if the variable is not zero.
The code must be something like $(not zero)… or $possitive…
Thank you very much in advance,
Raquel


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I am not sure but i think you want to use an equation which should be valid when that particular variable would be 0? If yes then plz check page number 73 and onward http://www.inf.ufpr.br/aurora/disciplinas/topicosia2/livros/search/integer.pdf



Regards,
Owais Nooruddin

+358465700556

2015-07-17 13:19 GMT+03:00 Raquel :

Hi,
Does anyone know the code for only taking into account the variable if it is not equal to zero?
I mean, I have an equation and I only want it if the variable is not zero.
The code must be something like $(not zero)… or $possitive…
Thank you very much in advance,
Raquel


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Hi, thank you very much for your answer, I am going to read the paper you sent.
Regards,
Raquel

El viernes, 17 de julio de 2015, 12:19:41 (UTC+2), Raquel escribió:

Hi,
Does anyone know the code for only taking into account the variable if it is not equal to zero?
I mean, I have an equation and I only want it if the variable is not zero.
The code must be something like $(not zero)… or $possitive…
Thank you very much in advance,
Raquel


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