Calculator Heatmap

This heatmap calculator is very handy, because you can find the buttons you use often easy, because this is colored differently of the buttons you do not use often. The calculator itself is basic; it contains memory buttons nd the basic operators. The sum is completely displayed, so you know exactly what is been calculated. Properties of this heatmap calculator are:

- Memory buttons;
- Basic operators;
- Scientific notation display;
- Decimal numbers;
- Sum display;
- Heatmapped buttons.