eMathStudio (Student & Teacher) comes with a checking quota of 200 checks. If you are a user of eMathStudio Free, or you wish to add more checking to your subscription plan, you can increase your quota with eMathChecker additional checking quota.
The unique checking feature allows you to check if your derivation is mathematically correct, step-by-step. The checking function is not connected to any pre-made material, which means that you can use it to check any assignments you are working on. The math checker supports up to university level mathematics. In addition it includes a calculator for performing numerical and symbolical calculations. The calculations are done in-line as part of your derivations, which means that you do not have to copy results from one field to another.
Your checking quota is valid 1 year from purchase. Purchase requires that you have a user account. Get one here.