aMathEngine - Basic4 - Google Play
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Official Google Play Link
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Publisher Description
A Graphical Math Calculator for School, Science and Engineering.
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BASIC
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+ Typical Math Operations s. Screenshot.
+ Displays graphical Formulas, with zoom and rotation possibilities.
+ 3 Workspaces.
+ Shows Functions with 'Gesture Functionality'.
+ Manually Editing of the interval boundaries.
+ Calculates Extreme Values: Root's, Maxima, Minima and Pole's.
+ Memorybutton.
+ PDF Export.
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EXTENDED
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+ Stores Functions, optionally with Parameters.
+ For Depiction is a Split-Screen Graph or a Multi-Screen Graph available.
+ The Multi-Screen Graph supports three Functions in one Screen.
+ In the Split-Screen-Graph could be shown two Functions per Screen.
+ In both Graphs Tangents could be displayed to show Function values.
+ PDF Export.
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PRO
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+ Adds trigonometric and hyperbolic functions.
+ Transforms Numbers to Hex, Dual, Octal, Decimal Format.
Control Engineering
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+ Tuning Rules:
> Magnitude Optimum from Kessler
> Symmetrical Optimum from Kessler
> Chien Hrones Reswick
> Latzel
> Samal
> Kuhn
> Oppelt
> Cohen Coon
> Ziegler Nichols
+ Calculates Parameters:
> for I-Tn, P-T1, P-T2, P-T2s and P-Tn Plants,
> for many different and/or equal Time-Constants [P-Tx Plants],
> from a given Step Response with a P-Tn (n equal Time-Constants) Approximation in accord with 'Schwarze',
> from a given Step Response with a P-T1-Tn (1 Time-Constant and any n equal Time-Constants) Approximation in accord with 'Schwarze',
> from a given Step Response with a P-Tt-T3 Approximation in accord with 'Thal-Larsen',
> from a given Step Response with a P-T2 Approximation in accord with 'Ormanns',
> from a given Step Response with a P-Tx Approximation in accord with 'Radtke',
> from a given Step Response with a P-Tn Approximation in accord with 'Sponer',
> from a given Step Response with a P-Tt-T1 Approximation in accord with 'Strejc',
> from a given damped Oscillation and
> from a TuTg-Approximation.
+ Identification of the P-, I-, PI-, PD-, and PID Controller Parameter from a Step Response.
+ Depiction of the Step Responses from the Plants and Controllers see above
> in a Multi-Function-Graph [3 Step Responses] or
> in Split-Screen-Graph [2 Step Responses per Screen]
> with or without Tangents.
+ Calculation and Depiction of Closed Loops.
> continuous Controller:
P, I, PI, PD, and PID,
Regulation Limitation
and Anti-wind-up.
> discrete Controller:
Two-Point Controller,
Three-Point Controller.
> Plants:
Deadtime-, P-, I-, D- and Oscillating Element,
delayed Elements with equal Time-Constants,
delayed Elements with different Time-Constants,
TuTg-Element,
Reference Performance at a specified Time,
Compensation Element in the Reference Path,
Disturbance Attenuation before and behind a Plant.
+ Depiction of the Step Responses
> in a Multi-Function-Graph [3 Closed Loops] or
> in a Split-Screen-Graph [2 Closed Loops per Screen]
> with or without Tangents for displaying the Function values.
> in tabular form.
+ PDF Export [Please note, that you have to set the App-Permissions on Android 6! -> write to Storage].
Simulation
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+ Adjustment of the calculation Steps.
+ Algorithm in accord with Runge-Kutta.
