CSiSections vs Polygon

CSiSections is an app that conveniently computes the structural properties of cross-sections of more than 25 shapes. CSiSections is an essential tool for engineers who quickly need the properties of commonly used sections and also for students who want to learn about the calculation procedures for structural properties of various sections. Application / Usage: • Define geometry of parametric cross-sections • Conveniently computes structural properties of simple and complex structural cross-sections Target Users: • Engineers who need structural properties of commonly used sections quickly • Students and teachers who want to know the structural properties of various cross-sections and calculation procedures Key Features: • More than 25 parametric sections, 6 shape categories to choose from • Responsive graphics • Detailed calculation reports Key Input: • Section type, dimensions Key Output: • Basic properties: Area, inertia, radius of gyration, section modulus • Advanced properties: Shear area, torsional constant • Principal properties: Principal angle, principal moment of inertia

Polygon will allow you to calculate complex and tedious calculations related to any polygonal figure, whether concave or convex, regular or irregular, in a simple and instantaneous way: - Polygon Centroids - Moments of Inertia Ix, Iy, Ixy - Polar Moment of Inertia - Radius of gyration - Principal Moments of Inertia (Iu, Iv and their respective angles) - Area and Perimeter of the polygon - Length of each side of the polygon - Even incorporate hollow sections - Rotate the axes to a custom angle - Define new custom axes at any point - and much more You just have to enter the coordinates of the vertices of your polygon and press the button and it will immediately calculate all the previous properties, saving valuable time. Subscription Terms: Payment will be charged to Itunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turnerd off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hour prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Setting after purchase. No cancellation of the current subscription is allowed during active subscription period. For in-app purchases and subscriptions, see Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/