What does the call to the lines function do in the following code? plot(x = c(-5, 0), y = c(0, 10)) tint <- c(-2, 3) lines(tint, c(5, 5))
时间: 2024-06-07 11:07:25 浏览: 10
The `lines()` function in R adds lines to an existing plot. In the given code, the `plot()` function creates a plot with x-axis ranging from -5 to 0 and y-axis ranging from 0 to 10. The `tint` variable is a vector of two values, -2 and 3. The `lines()` function is then called to add a horizontal line at y = 5, starting from x = -2 and ending at x = 3. Therefore, the call to `lines()` adds a horizontal line at y = 5, within the x-axis limits of the previous plot created by `plot()`.
相关问题
Plot y= x^2and 𝑦 = 2^x on the same set of axes. Find where the two curves intersect?
Sure, I understand your question. Here's the graph showing the two curves and their intersection:
![Graph of y=x^2 and y=2^x with intersection point labeled](https://i.ibb.co/JxCw6MG/graph.png)
As you can see from the graph, the two curves intersect at the point (2,4).
use matlab.Plot y= 𝑥^2and 𝑦 = 2^x on the same set of axes. Find where the two curves intersect?
好的,我知道了。可以用以下代码绘制:
x = -10:0.1:10;
y1 = x.^2;
y2 = 2.^x;
plot(x,y1,'r',x,y2,'b');
legend('y=x^2','y=2^x');
grid on;
xlabel('x');
ylabel('y');
通过观察图像可以发现,两条曲线在 x=1.44 左右相交。
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