User talk:Manulinho72

Derivative
Hello. Please refrain from changing the power rule: you have been doing so incorrectly. The power can be any real number: there is no requirement that it be an integer or natural number. Sometimes, in calculus texts it is introduced this way at first, but later in the text the full power rule is shown to not require the exponent be an integer. Thanks. Cheers, Doctormatt 07:58, 2 March 2007 (UTC)

Potential energy surface/Comments
A template has been added to the article Potential energy surface/Comments, suggesting that it be deleted according to the proposed deletion process. All contributions are appreciated, but this article may not satisfy Wikipedia's criteria for inclusion, and the deletion notice explains why (see also "What Wikipedia is not" and Wikipedia's deletion policy). You may contest the proposed deletion by removing the  notice, but please explain why you disagree with the proposed deletion in your edit summary or on its talk page. Also, please consider improving the article to address the issues raised. Even though removing the deletion notice will prevent deletion through the proposed deletion process, the article may still be deleted if it matches any of the speedy deletion criteria or it can be sent to Articles for Deletion, where it may be deleted if consensus to delete is reached. If you endorse deletion of the article, and you are the only person who has made substantial edits to the page, please tag it with db-author. Agamemnon2 18:07, 17 July 2007 (UTC)

File:Clar rule.svg
Hi Manulinho72. You tagged this image as incorrect in the PAH article. You may want to tag the image also directly on Commons using c:Template:Disputed chem (giving further details) or to nominate it for deletion. --Leyo 07:37, 30 October 2014 (UTC)

Hi Leyo, Thanks for the comment I am really really busy rightnow. It is simple, the molecule of the image is not Zethrene, could you do that?