I am trying to get matlab to solve the derivative for t which should come out to 693.15 u. it displays the p value correctly.

code:

vnum=input('Enter any numbers before expnential value of V: ');

vcoeff=input('Enter the coeficent to the exponential (V): ');

vexp=input('Enter the exponent to the exponential (V): ');

icoeff=input('Enter the coeficent to the exponential (I): ');

iexp=input('Enter the exponent to the exponential (I): ');

pnum=vnum*icoeff;

pcoeff=vcoeff*icoeff;

pexp=iexp+vexp;

fprintf('p= %0.2fe^( ',pnum)

fprintf('%0.2ft) ',iexp)

fprintf('%0.2fe^(',pcoeff)

fprintf('%0.2ft) W\n',pexp)

fprintf('\n')

syms t;

equation1=(pnum*exp(iexp*t))-pcoeff*exp(pexp*t);

diffequation1=diff(equation1);

pretty(solve(diffequation1,t))

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display:

Enter 1 for part A:

Enter 2 for part B:

1

Enter any numbers before expnential value of V: 75

Enter the coeficent to the exponential (V): -75

Enter the exponent to the exponential (V): -1000

Enter the coeficent to the exponential (I): .05

Enter the exponent to the exponential (I): -1000

p= 3.75e^( -1000.00t) -3.75e^(-2000.00t) W

pi 1i log(2)

----- + ------

1000 1000

Answer 1

[Red]

i have solved the quesion i needed to fprint the answer in sientific notiation and it worked. :)