import math;

// test toRad
{
	assert toRad(0) == 0, "toRad 0° failed";
	assert toRad(180) == PI, "toRad 180° failed";
	assert toRad(360) == 2 * PI, "toRad 360° failed";
}


// test toDeg
{
	assert toDeg(0) == 0, "toDeg 0 failed";
	assert toDeg(PI) == 180, "toDeg π failed";
	assert toDeg(2 * PI) == 360, "toDeg 2π failed";
}

// test sin
{
	assert sin(PI) == 0, "sin π failed";
}


// test cos
{
	assert cos(PI) == -1, "cos π failed";
}