TI-Nspire CX II field manual for IB Math
26
All coursesEvaluating a definite integral
Use the calculator's numerical integral command to evaluate ∫abf(x)dx.
Evaluate ∫02e−x2dx.
1
From the Scratchpad calculator, press → 4: Calculus → 2: Numerical Integral to insert the integral template, with boxes for the lower and upper limits.
2
Fill the template, moving between boxes with : lower limit , upper limit . For the integrand, press then for the e^▯ template, type , then to leave the exponent box, and set the variable to .
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.