Texas Instruments voyage 200 User Manual - Page 818
that minimize, In function graphing mode
UPC - 033317193424
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fMax( ) MATH/Calculus menu fMax(expression, var) ⇒ Boolean expression fMax(1ì (xì a)^2ì (xì b)^2,x) ¸ Returns a Boolean expression specifying candidate values of var that maximize expression or locate its least upper bound. fMax(.5x^3ì xì 2,x) ¸ x = a+b 2 x = ˆ Use the "|" operator to restrict the solution fMax(.5x^3ì xì 2,x)|x1 ¸ interval and/or specify the sign of other undefined variables. x = ë.816... For the APPROX setting of the Exact/Approx mode, fMax() iteratively searches for one approximate local maximum. This is often faster, particularly if you use the "|" operator to constrain the search to a relatively small interval that contains exactly one local maximum. fMax(aù x^2,x) ¸ x = ˆ or x = ë ˆ or x = 0 or a = 0 fMax(aù x^2,x)|a0 and x>1 ¸ x = 1. fMin(aù x^2,x)|a>0 ¸ x = 0 Note: See also fMax() and min(). FnOff CATALOG FnOff Deselects all Y= functions for the current graphing mode. In split-screen, two-graph mode, FnOff only applies to the active graph. FnOff [1] [, 2] ... [,99] Deselects the specified Y= functions for the current graphing mode. In function graphing mode: FnOff 1,3 ¸ deselects y1(x) and y3(x). In parametric graphing mode: FnOff 1,3 ¸ deselects xt1(t), yt1(t), xt3(t), and yt3(t). 820 Appendix A: Functions and Instructions