Lesson 3

You can perform First Order Differentiation on your Cassio 991ES or Cassio 991MS calcy.

Step 1: First set your calcy in the COMP mode.
Step 2: Press Shift + Integration.
Step 3: Type the required function.
Step 4: Press -> and enter the value of x at which you want to find the differentiation of the function.
Step 5: Press = to get the solution.

eg: If you want to find the differentiation of x²+2x+1 at x=12
follow the procedure as mentioned above then press -> press 12. and press =.

Note: You can solve only first order differentiation.