# question regarding symbolic expression for differential equations to an initial value problem

I am currently studying differential equation now, and I just have one question about the symbolic expression for an initial value problem. I don't quite understand what does sympolic expression mean, any explanation or help would be really appreciated.

here is the image of this question

• I assume it means writing $x$ as a function of $t$? What do you think it means? Dec 4 '17 at 22:21
• The word should be "symbolic". The "p" is a typo. What they want is for you to write $x = Qe^{At}$, for some $Q$ and then find the value of $Q$ that will give $x(0) = [-1, 3]^T$. Dec 5 '17 at 3:19
• Thank you so much for your reply! Dec 6 '17 at 20:56