betic"; 
	fixed_context.font = "20px sans-serif";
	fixed_context.fillText(sign == -1.0 ? "Negative number" : "Positive number", 20, 120);

	fixed_context.fillStyle = "#673670"
	fixed_context.fillText("of " + n + " quarters,", 20, 145);
	fixed_context.fillText("which is " + sign * (n / 4.0).toFixed(2) + " in real numbers.", 20, 170);
}

// floating point
floating_cell_xs = [20, 20 + 90 + 43 - 32, 20 + 90*2 + 43 - 32, 20 + 90*3 + 43 - 32, 20 + 90*4 + 43*2, 20 + 90*5 + 43*2];
floating_cell_colors = ["#dba0ac",