HP 35s HP 35s scientific calculator - User Guide - Page 139
Selects Radians mode
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Enter the expression that defines the integrand's function: sin x x If the calculator attempted to evaluate this function at x = 0, the lower limit of integration, an error would result. However, the integration algorithm normally does not evaluate functions at either limit of integration, unless the endpoints of the interval of integration are extremely close together or the number of sample points is extremely large. Keys: Display: Description: X Õ X Selects Equation mode. Starts the equation. The closing right parenthesis is required in this case. Terminates the equation. Checksum and length. Leaves Equation mode. Now integrate this function with respect to x (that is, X) from zero to 2 (t = 2). Keys: 9 X X Display: _ Description: Selects Radians mode. Enters limits of integration (lower first). Displays the current equation. Calculates the result for Si(2). Integrating Equations 8-5