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  1. H

    Related rates radius

    Homework Statement a snowball is rolling donw a hill, its radius is changing at a rate of 2 cm/min. what is the rate of change of the area, when the radius is 8 cm? Homework Equations da/dt= 2pir2dr/dt dat/dt=2pi(8)(2) 32pi ??? is that right The Attempt at a Solution 32pi
  2. H

    Taylor series derivative

    Homework Statement Using Taylor expansion, show that the one-sided formula (f_-2-4f_-1+3f)/2h is indeed O(h2). Here f-2, for example, stands for f(xo-2h), and f-1 = f(xo-h), so on. The Attempt at a Solution Can some1 help me get starte, im greatly confused
  3. H

    Curve fitting using matlab

    Homework Statement For the given set of data, find the least-square curve: A) f(x)=Ce^Ax, by using the change of variable X=x, Y=ln(y), and C=e^B to linearize the data points. B) f(x) = 1/(Ax+B), by using the change of variable X=x and Y = 1/y to linearize the data points. x : [ -1 0 1...
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