: Press [M+] to add a result to independent memory. Recall Memory : Press [RCL] [M+] to view the stored total.
?→A: ?→B: ?→C: B²-4AC→D: (-B+√D)÷(2A)→X: (-B-√D)÷(2A)→Y: "X=": X◢ "Y=": Y
Pro Tip: Do not waste time on third-party document sites that want you to sign up for a subscription. The manual is free. However, keep this tab open, because below I am translating the engineering jargon into exam-room English.
SHIFT + 9 + 1 (ClrMemory) to clear variables without resetting system settings. Programming Shortcuts: Input (?): SHIFT + 3 + 1 Output (◢): SHIFT + 3 + 4 Assignment (→): SHIFT + 3 + 2 Multi-statement (:): ALPHA + ( – )
Never upgrade the firmware in the week before an exam. If it breaks, it breaks. Keep your "hot" calculator cool and stable.
The fx-50FH II has several "hidden" or secondary functions that professionals use to speed up their workflow:
