IFLScience - Making hearts on your graphing calculator is way better than doodling on a notebook! | Facebook
Geek Love: Send Your Valentine A Heart Equation With Desmos (Now In HTML5!) | TechCrunch
Google Graphing Calculator: Google Search to plot Graphs
How to graph the shape of a heart on a graphing calculator using multiple equations and on what type of calculators can you do this - Quora
Heart Curve -- from Wolfram MathWorld
Hamstead Hall Maths on X: "Who has a #cg50 graphic calculator? Can you draw the best Maths heart? @CasioMaths @Hamstead_Hall https://t.co/jsIMC1CH4k" / X