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{{Orphan|date=October 2008}} | |||
{{Infobox software | |||
| name = E-Z Solve | |||
| logo = [[Image:EZ Solve Logo.JPG]] | |||
| screenshot = [[Image:EZ Solve Screenshot 01.jpg|300px]] | |||
| caption = E-Z Solve running on Windows XP, attempting to solve a series of linear equations. | |||
| developer = [[Intellipro, Inc.]] | |||
| latest_release_version = 1.0 | |||
| latest_release_date = September, 1998 | |||
| genre = [[List of numerical analysis software|Technical computing]] | |||
| license = [[Proprietary software|Proprietary]] | |||
| website = [http://ca.wiley.com/WileyCDA/WileyTitle/productCd-0471329738.html John Wiley & Sons Inc, the publisher] | |||
}} | |||
'''E-Z Solve''' is a [[Numerical analysis|numerical computing]] environment. Created by [[Intellipro, Inc.]], E-Z Solve allows the user to write virtually any combination of [[differential equation]]s (ODE's) and [[algebraic equation]]s, including parameters, user-defined functions and [[lookup table]]s. | |||
According to the developer, other features include: | |||
* the ability to create user-defined functions implementing logic and looping structures to be referenced in equation sets; | |||
* the capacity to store multiple equation sets in one file (or session), providing an excellent tool for comparing results from different models; | |||
* the "Sweep" function, which provides the capability of solving the system for a set of varying [[parameter]]s and/or [[initial condition]]s; | |||
* the ability to view solution results in a [[spreadsheet]] link data grid,{{Clarify|date=June 2010}} or graphically on [[2D computer graphics|2D]] and [[Three-dimensional space|3D]] graphs; | |||
* the capacity for plotting any number and combination of variables and their functions, on [[2D computer graphics|2D]] and [[Three-dimensional space|3D]] graphs, to produce component-vs-time, phase-plane or any type of user-defined graph. | |||
E-Z Solve offers some variety in [[numerical method]]s, including the [[Euler method]], the [[Runge-Kutta|Runge-Kutta (4,5) pair]], [[Linear multistep method#Adams.E2.80.93Moulton_methods|Adams-Moulton orders 1-12]] and [[Backward differentiation formula|BDF orders 1-5]]. (By comparison, [[MATLAB]], offers only the Runge-Kutta (2nd & 3rd) and (4th & 5th) order methods). | |||
However, the processing capacity of E-Z Solve would be inadequate for anything but medium-scale projects, as the number of variables per session is limited to 50, and the number of first-order differential equations cannot exceed 30. | |||
Additionally, E-Z Solve has relatively obscure error messages, and it sometimes seems to struggle even with linear equations. A sample error message can be seen [[:Image:EZ Solve Screenshot 01.jpg|here]]. The descriptive text reads as: | |||
"Error. Out of range." | |||
Consulting the software's documentation results in 0 matches for the error message. | |||
Sometimes even seemingly innocuous functions such as: | |||
:<math> | |||
\quad B(a)=670 </math> | |||
:<math> | |||
\quad G=e^{\frac{B}{127}}</math> | |||
can lead to the error. | |||
== Debugging Capabilities == | |||
These are nonexistent. Error messages are vague at best, and rarely (if ever) point one to the true cause of a problem. Some choice error messages are: "Possibly too many unknowns." and "Error. Overflow." It is impossible to trace a solution step-by-step, and the user is left to his own devices relatively often. | |||
== External links == | |||
* [http://cape.uwaterloo.ca/dept/software.htm Brief Overview of the Program], at the website of the Chemical Engineering Department of the ''University of Waterloo''. | |||
* [http://ca.wiley.com/WileyCDA/WileyTitle/productCd-0471329738.html Publisher's web site], at the website of ''John Wiley & Sons''. | |||
[[Category:Numerical software]] | |||
[[Category:Plotting software]] | |||
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E-Z Solve is a numerical computing environment. Created by Intellipro, Inc., E-Z Solve allows the user to write virtually any combination of differential equations (ODE's) and algebraic equations, including parameters, user-defined functions and lookup tables.
According to the developer, other features include:
- the ability to create user-defined functions implementing logic and looping structures to be referenced in equation sets;
- the capacity to store multiple equation sets in one file (or session), providing an excellent tool for comparing results from different models;
- the "Sweep" function, which provides the capability of solving the system for a set of varying parameters and/or initial conditions;
- the ability to view solution results in a spreadsheet link data grid,Template:Clarify or graphically on 2D and 3D graphs;
- the capacity for plotting any number and combination of variables and their functions, on 2D and 3D graphs, to produce component-vs-time, phase-plane or any type of user-defined graph.
E-Z Solve offers some variety in numerical methods, including the Euler method, the Runge-Kutta (4,5) pair, Adams-Moulton orders 1-12 and BDF orders 1-5. (By comparison, MATLAB, offers only the Runge-Kutta (2nd & 3rd) and (4th & 5th) order methods).
However, the processing capacity of E-Z Solve would be inadequate for anything but medium-scale projects, as the number of variables per session is limited to 50, and the number of first-order differential equations cannot exceed 30.
Additionally, E-Z Solve has relatively obscure error messages, and it sometimes seems to struggle even with linear equations. A sample error message can be seen here. The descriptive text reads as:
"Error. Out of range."
Consulting the software's documentation results in 0 matches for the error message.
Sometimes even seemingly innocuous functions such as:
can lead to the error.
Debugging Capabilities
These are nonexistent. Error messages are vague at best, and rarely (if ever) point one to the true cause of a problem. Some choice error messages are: "Possibly too many unknowns." and "Error. Overflow." It is impossible to trace a solution step-by-step, and the user is left to his own devices relatively often.
External links
- Brief Overview of the Program, at the website of the Chemical Engineering Department of the University of Waterloo.
- Publisher's web site, at the website of John Wiley & Sons.