Mathex Scientific Calculator

★★★★★ Excellent apps Very convenient. After numbers of scientific calculator, only this calculator can really perform the answer function effectively as it can be used in keyed in equation. Very important for those who intend to perform iterative computation. Well done. For additional future upgrade, we recommend degree minutes second function and fraction to be incorporated to make this scientific calculator ultimate.

★★★★★ I spent a few bucks to install this app simply because I loved the retro look of the UI. This calculator has a common problem among scientific calculator apps. It is stating incorrect values of some trigonometric functions at integral multiples of 90°. For example, sin180° = 0, but not according to this calculator. Similarly, cos270° = 0, but this calculator says otherwise. Some folks reading this know than tan90° does not exist, but this calculator reports a numerical value for tan90°. There are a couple of ways that the developer can fix this. Hopefully, she will choose to do so for the next update. One last thing. Any calculator purporting to be a scientific calculator should really be capable of performing operations with complex numbers in rectangular and polar forms.

★★★★★ Works very well Nice scientific calculator with graphing, conversions, physics constants etc. Can do symbolic derivatives. It has just been published and looks very promising! I for one would welcome more symbolic stuff some time in future.

★★☆☆☆ Horrorible calculator written by people who don't use their own software. Trash. Developer: But why? Response: Why? Why don't you pick up a REAL calculator and find out? Do your homework! Try a Casio or a TI.