This calculator provides symbolic and numerical differentiation of mathematical functions. It’s designed for educational purposes to help students understand the concepts of calculus and derivatives. Function Input Enter a function f(x) Enter a mathematical function using x as the variable. For example: x^2, sin(x), e^x, etc. Function Preview Derivative Order Select the order of the […]

Compute the observed effect size and its confidence interval using the formula: $$ f^2=\frac{R^2_{\text{full}}-R^2_{\text{base}}}{1-R^2_{\text{full}}}. $$ * Input sample size \( n \), baseline and full-model \( R^2 \), number of predictors in each model, and desired confidence level (e.g., 0.95). Note that \( R^2_{\text{full}}>R^2_{\text{base}} \) and \( n > k_{\text{full}}+1 \). Step 1: Enter Model […]