All NMR vs Third grade Math

App to predict ¹³C and ¹H NMR spectra: draw a structure to see its spectra. The accuracy (Mean Average Error) of the algorithm is about 1.5 ppm for ¹³C and 0.21 ppm for ¹H (RMSE = 2.8 and 0.31 ppm correspondingly). - Instantly re-calculate spectra while changing structure; - Predicted spectra stored in iCloud and synchronised among all iOS devices and Mac version; - Email PDF report; - Zoom in spectrum; - Zoom in structure (important for iPhone users); - Option to display chemical shift values on structure; - Simple clean interface. The prediction algorithm is a combination of neural network and spheric codes based algorithms.

Elevate your subtraction skills with Third Grade Math Subtraction—an engaging app that blends natural handwriting input with adaptive mini games. Choose between two modes: use Math Trainer as a whiteboard to write answers at your own pace, or dive into 5 fun, interactive Math mini games that adjust to your skill level. With Third grade Math - Subtraction you can practice and improve the following math skills: - Subtraction facts - numbers up to 100 - Subtract two two-digit numbers - Subtract two three-digit numbers - Complete the subtraction sentence up to three digits - Subtract numbers with four or five digits - Balance subtraction equations up to two digits - Balance subtraction equations up to three digits Master essential subtraction concepts while enjoying an adaptive, dynamic learning experience that keeps you challenged and motivated every step of the way. Download today and transform your math practice into a rewarding adventure!