Trying to find the function of x for 0<=x<=2L

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Skye Cameron
Skye Cameron 2020-2-17
评论： John D'Errico 2020-2-17
clc; clear; close all; format short g;
%knowns
gamma = 1.4;
R = 8.31;
m = 4.0;
P0 = 10;
T0 = 300;
r0 = 0.01;
L = 0.05;
%function
x = [0:2*L];
func = @(x) r0((2*(x)/L)+ exp(-2*(x)/L));
y = func(x);
%graph
plot (x,y)
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fadams18
fadams18 2020-2-17
can you post a snapshot of your function. what are all those values P0 and T0 for. i dont see where you have used them in the function
John D'Errico
John D'Errico 2020-2-17
Rathr thn trying to use the colon operator to create x, as
x = [0:2*L];
you should learn to use linspace.

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采纳的回答

Stephen23
Stephen23 2020-2-17
编辑：Stephen23 2020-2-17
Two changes:
  1. you defined x to contain exactly one value, which is not very useful for plotting.
  2. you were missing some multiplications inside the function definition.
Fixed here:
>> func = @(x) r0*(2*x./L + exp(-2*x./L));
>> X = 0:0.01:2*L;
>> Y = func(X);
>> plot(X,Y)

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