HP 40gs hp 40gs_user's guide_English_E_HDPMSG40E07A.pdf - Page 270

hp40g+.book Page 18 Friday, December 9, 2005 1:03 AM SHIFT MATH keys VARS key 15-18 Diff&Int ( ), Rewrite ( ( ) and Trig ( ). ), Solve • The Complex menu, providing functions specific to manipulating with complex numbers. • The Constant menu, containing e, i,∞ and π. • The Hyperb. menu, containing hyperbolic functions. • The Integer menu, containing functions that enable you to perform integer arithmetic. • The Modular menu, containing functions that enable you to perform modular arithmetic (using the value contained in the MODULO variable). • The Polynom.menu, containing functions that enable you to perform calculations with polynomials. • The Real menu, containing functions specific to common real-number calculations • The Tests menu, containing logic functions for working with hypotheses. The key combination opens an alphabetical menu of all CAS commands. You can enter a command by selecting it from this menu, so that you don't have to type it in ALPHA mode. Pressing while you're in the Equation Writer displays the names of the variables defined in CAS. Take special note of namVX, which contains the name of the current variable. The menu options on the variables screen are: Press to copy the name of the highlighted variable to the position of the cursor in Equation Writer. Press to see the contents of the highlighted variable. Press to change the contents of the highlighted variable. Equation Writer