In mathematical induction, showing that something works for the first case, or that P1 is true. angle of depression. The angle formed by a horizontal line and an observer's line of sight to an object below. angle of elevation. The angle formed by a horizontal line and an observer's line of sight to an object above.
Plankton's voice is provided by American actor Mr. Lawrence. The voice Lawrence uses for Plankton originated as an imitation of one of his deep-voiced friends from high school. On television, he first used the voice for incidental characters on Rocko's Modern Life.
Jill Talley is a comedic actress and is married to Tom Kenny. She is the voice of Karen, Planktonâs computer W.I.F.E. and some other small characters in the SpongeBob SquarePants. In The SpongeBob SquarePants Movie, she voices the old lady in the monster.