HP 35S Scientific 35s Specifies the function, Recalls lower limit of integration, Recalls upper limit of integration. (X = D.)

             ∫   

Recalls lower limit of integration.Recalls upper limit of integration. (X = D.)Specifies the function.Integrates the normal function using the dummy variable D.

Restrictions on Solving and Integrating

The SOLVE variable and ∫ FN d variable instructions cannot call a routine that contains another SOLVE or ∫ FN instruction. That is, neither of these instructions can be used recursively. For example, attempting to calculate a multiple integral will result in an ∫ ∫  error. Also, SOLVE and ∫ FN cannot call a routine that contains an label instruction; if attempted, a   or ∫   error will be returned. SOLVE cannot call a routine that contains an ∫ FN instruction (produces a ∫  error), just as ∫ FN cannot call a routine that contains a SOLVE instruction (produces an ∫  error).

The SOLVE variable and ∫ FN d variable instructions in a program use one of the 20 pending subroutine returns in the calculator. (Refer to "Nested Subroutines" in chapter 14.)

Solving and Integrating Programs 15-11