HP 20b Consultant Financial manual Keys Description

Mathematical Calculations

Note: before doing any trigonometric calculations in the Math menu, check whether the angle mode is set for degrees (Degrees) or radians (Radians). You can change the setting if the active mode is not what your problem requires. For more information on the Mode menu and calculator settings, refer to the section titled, The Mode Menu: Setting Preferences.

Table 2-3 lists one-number functions along with their corresponding keys.

Table 2-3Shifted Function Mathematical Operations

Keys	Description
:w	Keys in numbers with explicit powers of 10.
:p	Calculates sine.
:q	Calculates cosine.
:r	Calculates tangent.
:k	Natural log.
:l	e x. Calculates natural exponent to the power of x.
:m	X2. Returns square of x.
:n	Calculates square root.

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