val a1: Float = 1F
val a2: Float = 1.0F
val a3: Float = 1e-1F
val a4: Float = 1.0e-1F

val b5: Float = 1f
val b6: Float = 1.0f
val b7: Float = 1e-1f
val b8: Float = 1.0e-1f