Translations:B-Splines/80/en

According to the properties of B-splines, there are 3 main use cases:
 * 1) Curves that start/end tangentially to a certain direction. An example for this is the motivation example above.
 * 2) Curves describing larger designs and providing the freedom of local changes. See this example below.
 * 3) Curves providing a certain continuity (derivative). See this example below.