How do I output a scientific (exponential) number multiplied by a symbol.

Hello

I'm writing a code which involves partial differentiation and integration with symbols. The problem is that the code outputs the number as a fraction which includes a huge numerator and an even bigger denominator. Is there a way to out put it as an exponential for example 5.56E-6? And if possible is there a way to show more significant figures.

The I1, I8 are the outputs.

%Castigliano With Respect to R1x %Clear command window and variables clearvars; clc; %Stating the knowns x1=0.01336; x2=0.01871; x3=0.02405; syms R1x R2x Fx1 Fx2 x

%First Moment M1 = R1x * x disp('dM1/dR1_x: '); k=diff(M1,R1x); disp(k) I1 = int( M1 * diff(M1,R1x), x, 0, x1)

%Eighth Moment M8 = R1x*(3*x1+2*x2+x3)-Fx1*(x3/2+x2+2*x1)+R2x*(x1)+(R1x-Fx1+R2x)*x disp('dM8/dR1_x: '); k=diff(M8,R1x); disp(k) I8 = int( M8 * diff(M8,R1x), x, 0, x2)

Answer 1

[Mischa Kim]

Karim, have you tried

 vpa(I8)

or

 vpa(I8, 4)  % showing 4 significant digits

[Karim Taha]

Wow.. Finally! Well this solved the bigger part of the problem. It now shows the decimals correctly. If it can show the final answer exponentially that would be perfect!

For example: Instead of 0.000983182, 9.83182x10^-4 or 9.83182E-4