Before you spend time downloading or programming your calculator, check your teacher's or the testing center's policy.
The ◢ symbol tells the calculator to pause and show the result. Method 4: HP Prime
Most students "download" the formula by writing a simple program. It takes about two minutes and stays on your calculator forever. how to download the quadratic formula on calculator
The HP Prime has a dedicated "Solve" app that handles quadratics natively. Press the key and select Solve . Enter your equation (e.g., Press the Num view key. Enter any knowns and tap Solve on the screen. A Quick Warning on Exams
Press F1 (2) for a second-degree polynomial (quadratic). Before you spend time downloading or programming your
Type A,B,C (use the ALPHA key to get letters and the comma key above the 7). Type: (-B+√(B²-4AC))/(2A) → X Type: (-B-√(B²-4AC))/(2A) → Y Note: The arrow → is the STO> button above the ON key. Display the Results: Press PRGM , arrow to I/O , and select Disp . Type X,Y .
Use the ? command (found in the VARS > PRGM menu) to prompt for A, B, and C: ?→A:?→B:?→C: It takes about two minutes and stays on
Input your A, B, and C values into the table. Solve: Press F6 (SOLVE). If you want to program it manually on a Casio: Go to PRGM mode from the Menu. Create a New file named QUAD .