HP Prime Graphing NW280AAABA Arithmetic, Example XPON123456 returns 5 since 105.0915... equals

ROUND can also round to a number of significant digits if places is a negative integer (as shown in the second example below).

Examples:

ROUND(7.8676,2) returns 7.87

ROUND(0.0036757,-3) returns 0.00368

Truncate Truncates value to decimal places. Also accepts complex numbers.

TRUNCATE(value,places)

TRUNCATE can also round to a number of significant digits if places is a negative integer (as shown in the second example below).

Examples:

TRUNCATE(2.3678,2) returns 2.36

TRUNCATE(0.0036757,–3) returns 0.00367

Mantissa Mantissa—that is, the significant digits—of value, where value is a floating-point number.

MANT(value)

Example:

MANT(21.2E34) returns 2.12

Exponent Exponent of value. That is, the integer component of the power of 10 that generates value.

XPON(value)

Example:

XPON(123456) returns 5 (since 105.0915... equals 123456)

Arithmetic

Maximum Maximum. The greater of two values.

MAX(value1,value2)

Example:

MAX(8/3,11/4) returns 2.75

Note that in Home view a non-integer result is given as a decimal fraction. If you want to see the result as a common fraction, press c.. This key cycles through decimal, fraction, and mixed number representations. Or, if you prefer,

314 Functions and commands