Manual / Guide
Casio fx-115ES PLUS / fx-991ES PLUS C (2nd edition) User's Guide
Casio's user's guide for the second edition of the fx-115ES PLUS (US) and fx-991ES PLUS C (Canada): Natural Display, CMPLX, STAT, BASE-N, EQN, MATRIX, TABLE, VECTOR, INEQ, VERIFY and DIST modes, specifications and the authenticity check.