![gratis - Free alternative to step-by-step-solution feature of Wolfram|Alpha Pro? - Software Recommendations Stack Exchange gratis - Free alternative to step-by-step-solution feature of Wolfram|Alpha Pro? - Software Recommendations Stack Exchange](https://i.stack.imgur.com/sSSqH.png)
gratis - Free alternative to step-by-step-solution feature of Wolfram|Alpha Pro? - Software Recommendations Stack Exchange
Before my TI graphing calculator died I used to use the 'Solver' function that allowed one to define variables then input knowns and solve for the unknown. Where do I find that
![definite integrals - Why can't Wolfram Alpha calculate $\int_0^{2\pi}\sqrt{(a-\cos\theta)^2+\sin^2\theta}\ d\theta$? - Mathematics Stack Exchange definite integrals - Why can't Wolfram Alpha calculate $\int_0^{2\pi}\sqrt{(a-\cos\theta)^2+\sin^2\theta}\ d\theta$? - Mathematics Stack Exchange](https://i.stack.imgur.com/ws7CG.png)