How can I represent this function on simulink ?

I get the following error while trying to represent the function Cp(B,landa): * _Error using / Matrix dimensions must agree. Error in Untitled (line 3) Cp=0.5*(116/landa+0.4*B)*exp(-21/landa);

B=2;
landa=0:2:20;
Cp=0.5*(116/landa+0.4*B)*exp(-21/landa);
plot(lnda,Cp)

Answer 1

[Azzi Abdelmalek]

B=2;
landa=0:2:20;
Cp=0.5*(116./landa+0.4*B).*exp(-21./landa);
plot(landa,Cp)

[Hicham Lhachimi]

How does . make the change ?