The calculation steps of the dCode solver are not displayed because they are computer operations far from the steps of a student's process.
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How to calculate a differential equation on dCode? The equation must follow a strict syntax to get a solution in the differential equation solver : - Use ' to represent the derivative of order 1, ' ' for the derivative of order 2, ' ' ' for the derivative of order 3, etc. What is a differential equation? How to find values of constants c? What are the notations of the differential equations? How to solve a differential equation step by step?
Improve the Differential Equation Solver page! Send this comment. Differential Equation Calculator How to calculate a differential equation on dCode? These solutions are good if you know what the problem is. So what happened? Surprisingly, Mathematica lets us make assignments to y'[x] , similar to how we make assignments to symbols. It's an easy typographical error to make when entering differential equations. We can make a typo in the DE or in ICs or in both.
Differential equations intro (practice) | Khan Academy
If you will bear with me, I will show you a few error messages and how to fix them. Starting with a fresh kernel, suppose we evaluate this statement containing a typographical error:. If we read the error message closely we see that the last of our equations was misinterpreted as a 1.
So we fix it and hit Shift-Enter, and get almost the same error message. It still doesn't work! Now type in Quit followed by Shift-Enter.
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Try to execute the DSolve command and now it works. Okay, now re-create the problem and try to fix it with Unset[y'].
That works, too. Also try re-creating the problem and fixing it with Remove[y]. Now when you evaluate your DSolve command, you get the error message. You can fix the problem by executing either Quit or Unset[y'[x]] or Remove[y] at the keyboard, or by using Quit Kernel on the toolbar. Again, this is a common typographical error and you will get used to seeing the error message. You will soon instinctively check the equals signs before even reading the error message. I personally use Quit from the toolbar because 1 it sometimes tells me a second kernel is running and 2 I don't like having Quit in my notebooks.
Home Questions Tags Users Unanswered. NDSolve having problems solving a first order differential equation Ask Question.
First Order Equations
Asked 2 years, 2 months ago. Active 2 years, 2 months ago. Viewed times. Edmund Daniel Daniel 21 1 1 bronze badge. I am not sure as to why my first order derivatives change to a -y[x].