behnampmdg3 Posted April 27, 2015 Share Posted April 27, 2015 HelloI have simple math formula I wanna convert to PHP, but for some weird reason I can't!(X*X)*(3X)=1200Its should be easy to calculate it on paper but how can I convert this to PHP? Maybe it's too simple and my retardness has poped!Maybe something like? pow($y, 3)= 1200/3 Still not sure how to get thew reply from that. Thanks Link to comment https://forums.phpfreaks.com/topic/295894-convert-simple-math-formual-to-php-code/ Share on other sites More sharing options...
requinix Posted April 27, 2015 Share Posted April 27, 2015 Just because it uses the same = symbol doesn't mean it works the same way. Take the number 1200, divide by 3, then assign the result to the result of the function call pow($y, 3)That does not make sense. Rewrite the expression in terms of X alone. Meaning you have to end up at X = .... Link to comment https://forums.phpfreaks.com/topic/295894-convert-simple-math-formual-to-php-code/#findComment-1510067 Share on other sites More sharing options...
racken Posted August 8, 2015 Share Posted August 8, 2015 surely its just $x=240 ? (X*X)*(3X)=1200 => 5X=1200 => X=240 why do you need this in php? Link to comment https://forums.phpfreaks.com/topic/295894-convert-simple-math-formual-to-php-code/#findComment-1518278 Share on other sites More sharing options...
Barand Posted August 8, 2015 Share Posted August 8, 2015 // pow($x, 3) == 1200/3; // therefore $x = pow(1200/3 , 1/3); echo $x; //--> 7.3680629972808 (not 240, but close) to confirm echo 3 * 7.3680629972808 * 7.3680629972808 * 7.3680629972808; // --> 1200 Link to comment https://forums.phpfreaks.com/topic/295894-convert-simple-math-formual-to-php-code/#findComment-1518289 Share on other sites More sharing options...
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