Valentine's day Google trick to surprise your Girl Friend

If you are a romantic Mathematics geek then your girl-friend will surely like this gift on Valentine’s day. All you have to do is to type this equation in Google-

sqrt(cos(x))*cos(300x)+sqrt(abs(x))-0.7)*(4-x*x)^0.01, sqrt(6-x^2), -sqrt(6-x^2) from -4.5 to 4.5

I found that trick on Mashable.This trick was given to Mashable by Twitter user @Huckberry.Typing in the algebraic equation plots several different functions on a graph that forms the shape of a heart.

The series includes various square roots, absolute values and cosine functions — mathematical functions often taught in high school math courses. The plotted lines change direction due to the absolute value function flipping the sign of the x-coordinate, creating a mirror image across the y-axis.

The “cos(300x)” part of the formula was also written to make the line go quickly up and down as it traces out the interior of the heart. This creates the colored-in effect. Meanwhile, if you change the “300″ number in the equation to “500,” the color fills up the heart. That part of the formula is related to frequency.

Although the equation wasn’t written by Google, this is not the first time users have been able to type in certain keywords into search for a seasonal surprise. For example, type “Do a barrel roll” in Google and your entire webpage will start rolling and the word “askew” into Google the entire page will be titled and words will get distorted.