HP Prime Graphing NW280AAABA manual Math keys, Math template

Math keys

Math template

The most common math functions have their own keys on the keyboard (or a key in combination with the Skey).

Example 1: To calculate SIN(10), press e10 and press E. The answer displayed is –0.544… (if your angle measure setting is radians).

Example 2: To find the square root of 256, press Sj256 and press E. The answer displayed is 16. Notice that the Skey initiates the operator represented in blue on the next key pressed (in this case √ on the jkey).

The mathematical functions not represented on the keyboard are on the Math, CAS, and Catlg menus (see chapter 21, “Functions and commands”, starting on page 307).

Note that the order in which you enter operands and operators is determined by the entry mode. By default, the entry mode is textbook, which means that you enter operands and operators just as you would if you were writing the expression on paper. If your preferred entry mode is Reverse Polish Notation, the order of entry is different. (See chapter 2, “Reverse Polish Notation (RPN)”, starting on page 47.)

The math template key (F) helps you insert the framework for common calculations (and for vectors, matrices, and hexagesimal numbers). It

displays a palette of pre-formatted outlines to which you add the constants, variables, and so on. Just tap on the template you want (or use the arrow keys to highlight it and press E). Then enter the components needed to complete the calculation.

24 Getting started