清空筛选条件
清空筛选条件

How can this probability function be entered?

1 次查看（过去 30 天）
Matthew Nanos
Matthew Nanos 2015-3-8
评论： Star Strider 2015-3-9
I'm very new to matlab. I want to take this equation and use matlab to graph it:
I used this code
The variable P is created but it has a value for the first element, then all zeros.

请先登录，再回答此问题。

采纳的回答

Star Strider
Star Strider 2015-3-8
You have to vectorise your assignment for ‘P’:
k = 1.3806488E-23;
e = 6.0217657E-19;
z = 2;
Vh = 1E-3;
T1 = 25+273.15;
T2 = 37+273.15;
V = linspace(-0.1, 0.09);
VV = V-Vh;
P = 1./(1+exp(-z*e*(VV/(k*T1))));
figure(1)
plot(V, P)
grid
See Matrix vs Array Operations for details.

更多回答（1 个）

Greig
Greig 2015-3-8
Change P to
P = (1./(1+exp(-z*e*(VV/(k*T1)))));
Since the (1+exp(..)) is a vector you have to use array division (./)

类别

在 Help Center 和 File Exchange 中查找有关 Creating and Concatenating Matrices 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by