Why does this plot not work? Thank's for every help!

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Fabian Rüeger
Fabian Rüeger 2016-12-23
回答： Roger Stafford 2016-12-24
x = linspace(0.5,8.7,870)
syms y;
solve(4000 == (y/6.5)*(8.7-x),y)
plot(x,y)

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回答（1 个）

Roger Stafford
Roger Stafford 2016-12-24
It would be better to first solve the equation for y symbolically and then produce a vector of y values:
x = linspace(0.5,8.7,870);
y = 6.5*4000./((8.7-x); % <-- The symbolic solution
plot(x,y)

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