How to evaluate function with two variables
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How to evaluate the function when f(x,y)=sin(pi*x)*exp(-(pi)^2*t) when t=0:0.1:0.5,x=0.2:0.2:0.8
采纳的回答
Stephen23
2019-10-3
>> t = 0:0.1:0.5
t =
0.00000 0.10000 0.20000 0.30000 0.40000 0.50000
>> x = (0.2:0.2:0.8).'
x =
0.20000
0.40000
0.60000
0.80000
>> M = bsxfun(@times,sin(pi*x),exp(-(pi)^2*t))
M =
0.5877853 0.2190722 0.0816499 0.0304316 0.0113421 0.0042273
0.9510565 0.3544662 0.1321123 0.0492393 0.0183519 0.0068399
0.9510565 0.3544662 0.1321123 0.0492393 0.0183519 0.0068399
0.5877853 0.2190722 0.0816499 0.0304316 0.0113421 0.0042273
4 个评论
qudsia Bashir
2019-10-4
Stephen23
2019-10-4
"Can you please also tell me how to plot this..."
Sure, how do you want to plot it:
- six lines with independent variable x
- four lines with independent variable t
- a surface or mesh or similar,
- something else...
qudsia Bashir
2019-10-4
Stephen23
2019-10-4
surf(t,x,M)
mesh(t,x,M)
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