Bode & Nyquist vs ABeam Pro

This application allows you to plot the Bode and Nyquist diagrams of a transfer function and visualize its impulse response, providing tools to analyze both frequency-domain behavior and time-domain dynamics. The transfer function is entered via a simple numeric keypad and has been specially adapted to make immediately available all the keys you need. Open Loop Transfer function or the Closed Loop Transfer can be entered separately. The app automatically evaluate system stability. The number of unstable closed-loop poles, the number of unstable open-loop poles and the number of clock-wise encirclements of point -1+j0 are shown together with the Nyquist Plot. Gain and Phase margin are shown together with the Bode Plot. For each graph the following gestures are supported: * Drag: To move the chart in the desired position; * Pinch: To enlarge or shrinks the graph; * Double Tap to restore the position and zoom level of the graph to their original values​​. Through a dedicated function you can set the maximum frequency of the Nyquist diagram and the frequency range for the Bode diagrams of the module and phase. There is also a complete online help. BEFORE LEAVING AN ANONYMOUS NEGATIVE FEEDBACK AND THROW AWAY YOUR MONEY: 1) READ THE MANUAL AGAIN; 2) CHECK AGAIN THE SYNTAX OF THE ENTERED FUNCTION; 3) CONTACT ME, AND I WILL DO MY VERY BEST TO HELP YOU. A promo code for my Circuit Lab app will be send to users who will be able to report a recognized bug of this application.

ABeam Pro: Master Structural Analysis with Precision & Speed! Engineer Smarter, Not Harder
Tired of tedious manual calculations or clunky software? Meet A-Beam—the ultimate app for fast, accurate beam analysis using the Direct Stiffness Method. Designed by engineers for engineers, A-Beam transforms complex structural calculations into effortless, lightning-fast solutions—whether you’re designing a bridge, a rooftop, or acing your coursework. Why ABeam Pro? ► Direct Stiffness Method Perfected: Solve any beam configuration—simply input spans, supports, and loads (point, distributed, moments). Let A-Beam handle the math.
 ► Instant Results: Calculate reactions, shear forces, bending moments, and deflections in seconds. No more spreadsheets or guesswork.
 ► Visualize & Validate: Interactive diagrams display shear/moment curves, deformation plots, and critical points. See your design come to life.
 ► Export-Ready Reports: Generate professional PDF summaries with key metrics—perfect for presentations, reports, or client reviews.
 ► Student-Friendly: Built-in tutorials and examples demystify the Direct Stiffness Method. Learn faster, design smarter. For Engineers, Students, and Pros
Whether you’re a student tackling statics homework, a site engineer verifying a design, or a pro optimizing a structure, A-Beam is your pocket-sized powerhouse:
 ► Analyze beams of any length, material, or load combination
 ► Adjust parameters on-the-fly and see real-time updates 
► Avoid costly errors with precision-engineered algorithms 
► Work offline—no internet? No problem. Trusted by 50,000+ Engineers Worldwide
ABeam Pro isn’t just an app—it’s your secret weapon for structural confidence. Ditch outdated tools and join a new era of engineering agility. Download Now and Build with Certainty!   Your Beam. Your Rules. Solved in Seconds.
Available on iOS. No subscriptions, no bloat—just pure engineering power.   Build Boldly. Calculate Fearlessly. A-Beam. Perfect for: Civil engineers, structural designers, architecture students, construction pros, and DIY enthusiasts tackling beams like a boss.