Casio fx-CG50 field manual for IB Math
28
All coursesEvaluating a definite integral
Use the calculator's numerical integral command to evaluate ∫abf(x)dx.
Evaluate ∫02e−x2dx.
1
From the MAIN MENU open Run-Matrix (icon 1). Check Input/Output is set to Math under (SET UP), then insert the definite-integral template: press (MATH), then (▶), then (∫dx).
2
Fill the template, moving between boxes with the arrow keys: integrand (e^▯) then to step out of the exponent box, lower limit , and upper limit .
3
Press to evaluate.
∫02e−x2dx≈0.882.
Your turn
Work each one on your calculator, then check the answer.
- 1
Evaluate ∫01sin(x2)dx.
- 2
Evaluate ∫02√1+x31dx.
- 3
Evaluate ∫14xsinxdx.