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 Section Step–by–Step Directions TI Calculator(Links open in new window) x.x How to evaluate functions I TI89 TI83/84 x.x How to evaluate functions II TI89 x.x How to input piecewise-defined functions TI89 TI83/84 x.x How to input greatest integer (i.e., floor) function TI89 TI83/84 x.x How to factor polynomials TI89 N/A x.x How to expand expressions TI89 N/A 2.2/2.3 How to evaluate limits TI89 N/A 2.6 How to find tangent line to a curve TI89 N/A 2.7 How to find numerical derivatives TI89 N/A 2.7/2.8 How to find derivatives TI89 N/A 2.8 How to graph derivative functions TI89 N/A 1.7 How to graph parametric equations TI89 TI83/84 3.x How to solve equations TI89 TI83/84 3.3 How to find regression equation TI89 TI83/84 3.4 How to expand trig expressions with trig identities TI89 N/A 3.4 How to find equivalent trig expressions with trig identities TI89 N/A 4.4 How to find local/global minimums of functions TI89 TI83/84 4.4 How to find local/global maximums of functions TI89 4.4 How to find inflection points of functions TI89 N/A 4.8 How to estimate roots (i.e., zeros) of functions TI89 TI83/84 4.8 Newton's Method TI89 TI83/84 4.9 How to draw direction fields TI89 N/A 4.9 How to find the indefinite integral of a function TI89 N/A 5.1/5.2 How to find Riemann sum TI89 TI83/84 5.1/5.2 How to graph Riemann sum TI89 TI83/84 5.2 How to calculate the summation of expressions TI89 N/A 5.2 How to find the definite integral of a function TI89 N/A 5.4 How to use FTC part 1 TI89 N/A