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Namir · (This post was last modified: 06-01-2023 01:41 PM by Namir.)

Issue solved!

Namir

grbrum · 06-01-2023, 09:25 PM

Share rhe problem and solution. We can all learn. Thanks

Namir · (This post was last modified: 06-02-2023 01:57 AM by Namir.)

To integrate say f(x)=1/x between A and B (stored in registers A and B), use the following code

Code:

LBL A

RCL A

RCL B

FN= B

<integral symbol> FN d X

RTN

LBL B

INV(X)

RTN

LBL B has the EQUATION INV(X) (entered using the EQN feature in program mode). The step FN= B (you press the FN= and then press RCL B) tells the machine that the function to be integrated is in LBL B. The step <integral symbol> FN d X (you press the integral symbol and then RCL X) involves the integration using variable X which also appears in the equation INV(X) located after LBL B. The limits of the integration are in the stack, supplied by registers A and B (for the lower and upper integration limits).

Namir