Review week 27: angles and sun

The first week of the pro level brought mathematics and power together:

• Trigonometric functions: sin, cos, tan in radians, convert with deg2rad and rad2deg.
• Inverse functions: asin, acos, atan – and atan2 with y first, which knows all four quadrants. mod makes negative angles positive.
• Daylight sensor: Activate for light, SolarAngle as the angle to the sun, Horizontal and Vertical, all relative to the sensor itself.
• Tracking: conversion with an offset, panel Vertical only 15 … 165, park at night, write nothing on NaN.
• Solar fields: sb for all, sbn for groups, Minimum, Sum and Count for checking.

You pass from 60 %. After handing in, every question explains its answer.