HP 40gs hp 40gs_user's guide_English_E_HDPMSG40E07A.pdf - Page 196

hp40g+.book Page 14 Friday, December 9, 2005 1:03 AM STORE | 14-14 Example 2 Typing: SUBST(QUOTE(CONJ(Z)),Z=1+i) gives: CONJ(1+i) Store an object in a variable STORE stores an object in a variable. STORE is found in the ALGB menu or the Equation Writer menu bar. Example Type: STORE(X2-4,ABC) or type: X2-4 then select it and call STORE, then type ABC, then press ENTER to confirm the definition of the variable ABC. To clear the variable, press VARS in the Equation Writer (then choose PURGE on the menu bar), or select UNASSIGN on the ALGB menu by typing, for example, UNASSIGN(ABC) Substitute a value for a variable | is an infix operator used to substitute a value for a variable in an expression (similar to the function SUBST). | has two parameters: an expression dependent on a parameter, and an equality (parameter=substitute value). | substitutes the specified value for the variable in the expression. Typing: X2 - 1 X = 2 gives: 22 - 1 Computer Algebra System (CAS)