English: The Euler spiral as precise Bézier arcs. The spiral was calculated by numerically solving the differential equation that defines the Euler spiral, to an error less than 1e-6, at points were the curve direction makes equal angular steps, of 0.001°. The spiral was then divided in segments, to each of which a cubic Bézier arc was fitted so that in no point the fitting error was larger than 1e-6. For this, the spiral was cut in the places where it makes the following angles: 0°, 1°, 5°, 15° and then every 15° up to 10*360°. The SVG file preserves the 1e-6 accuracy level.