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Release notes January 2019
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Code generation: C, Fortran, MATLAB®
• Professional users have a more permissive (less restrictive) license for redistribution.
• C code has extensive improvements, including error reporting and code-flow.
• Auto-generated MATLAB® code has improvements to calling .m files with arguments.
• Generate more modern Fortran code with .f extension (or use .for extension for backward compatibility).
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Ease of use:
• Type Help for new searchable html help (no Internet access required).
• Type Save filename.html to save the program's input & output in .html format.
• Many more Get-started examples.
• Streamlined Macintosh installation.
• Significant enhancements to user notes, warnings, and error messages.
• Improved ordering of mass and inertia constants in an expression (e.g., g*m is now displayed as m*g).
• Improved display of near-integer numbers (e.g., 0.99999999999999).
• Type License to find the location of the currently installed license.
• Type PlotTest to test plotting compatibility.
• Many other ease-of-use enhancements.
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Syntax: The syntax of several commands have been unified and simplified. For example,
Help roots
Unifies help for GetPolynomialRoots, GetQuadraticRoots, GetCubicRoots, GetQuarticRoots, GetQuinticRoots,
GetPolynomial, GetQuadraticPolynomial, GetCubicPolynomial, SolveQuadraticPositiveRoot SolveQuadraticPositiveRootDt, ...
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Previous release notes
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OutputPlot: Create output and plot.
To create an Output file and plot the results (directly from MGKane or from MATLAB®) type:
OutputPlot t seconds, x meters, y meters, TotalEnergy Joules
Note: Issue the OutputPlot before issuing the ODE command.
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Constant: Declaration with Input value
To declare g as a constant and set its Input value to 9.8 m/s^2, type:
Constant g = 9.8 m/s^2
To declare mB as the mass of Particle or RigidBody B and set its Input value to 10 kg, type
B.SetMass( mB = 10 kg ) % mB is a constant
To declare IBxx as RigidBody B's moment of inertia about Bcm (B's center of mass) and set its Input value, type
B.SetInertia( Bcm, IBxx = 2 kg*m^2, IByy = 3 kg*m^2, IBzz = 4 kg*m^2 ) % IBxx is a constant
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EvaluateToNumber and EvaluateAtInput (for scalar, vector, matrix, and other expressions)
To evaluate the expression fred with previously assigned Input values and x = 2 m/s, y = 2 m/s, theta = 30 degrees, type:
joe = EvaluateToNumber( fred, x = 2 m/s, y = 3 m/s, theta = 30 degrees )
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Full feature list
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Features released since Autolev 4.2
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