121616949-math.296

# 121616949-math.296 - the range is a bit diﬀerent in the...

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282 Appendix A Introduction to Maple solve({3*x+5*y=6,4*x-6*y=-8}, {x,y}); h1:=3*x-6*y-5; h2:=-4*x*y+7; solve({h1,h2},{x,y}); evalf(%); fsolve({h1,h2},{x,y}); fsolve({h1,h2},{x,y},{x=-2..0,y=-2..0}); Maple can solve equations simultaneously, with either solve or fsolve. As with single equations, fsolve may not find all solutions, but you can specify ranges for x and y to force fsolve to find particular solutions. Maple can do two and three dimensional graphing. There are many ways to adjust the plots that Maple produces; we’ll cover just the basics here. plot(f,x=-10..10); plot(g(x),x=-5..5); plot(g,-10..10); plot(g,-10..10,y=-10..10); Maple will accept either an expression or a function to plot, but notice that the form of
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Unformatted text preview: the range is a bit diﬀerent in the two cases. For an expression, use ‘ x= ’ before the range, but for a function leave it out. You can also specify the range for y explicitly. This is often useful if the function gets very large on the interval. You can change the appearance of the plot in a variety of ways. Click in the plot and you should see a border appear around it; then you can explore the items on the plot menu. If you prefer, you can have plots come up in separate windows; use the Op-tions item on the Tools menu in the main Maple window, then open the Display tab and change the plot display....
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