for loop to create array

I am trying to create three arrays of concentration. Each array uses some of the same constants, however different calues for Kd and Ji.

The only variable changing in the equation to create a array is time (1 to 300 years).

Any help would be great:

%Given through all

JN = (60 * 10^15)/ 2.12;

Co = 415;

e = 2.71828182845;

V = 4 *10^21;

%Ji and Kd for each part 1,2,3

%1

Ji1=(9.1*10^15)/2.12;

KD1 = (2.5 * 10^-2);

%2

Ji2=(9.1*10^15)/2.12;

KD2 = (1.8 * 10^-2);

%3

Ji3=(14*10^15)/2.12;

KD3 = (2 * 10^-2);

%create arrays

t=1:300;

C1=[];

C2=[];

C3=[];

%Calculation of each part using equation given

for i = 1:300

C1= ((JN + Ji1)/(KD1 * V))+(Co - ((JN + Ji1)/(KD1 * V)))*e^(-KD1*t(i));

end

for i = 1:300

C2= ((JN + Ji2)/(KD2 * V))+(Co - ((JN + Ji2)/(KD2 * V)))*e^(-KD2*t(i));

end

for i = 1:300

C3= ((JN + Ji3)/(KD3 * V))+(Co - ((JN + Ji3)/(KD3 * V)))*e^(-KD3 * t(i));

end

Answer 1

[Walter Roberson]

No loops

C1= ((JN + Ji1)/(KD1 * V))+(Co - ((JN + Ji1)/(KD1 * V)))*exp(-KD1*t);

Notice exp() and notice t is not subscripted