Table 12-2. Solver Functions for Equations (Continued)

Function

Description

 

 

HMS(time)

Converts time in decimal hours to

 

HH.MMSS format.

HRS(time)

Converts time in HH.MMSS format to

IDIV(x:y)

decimal hours.

Integer part of the quotient of x/y.

IF(cond:expr1:expr2)

Conditional expression: if cond is true,

 

use expr1; if cond is false, use expr2.

 

See page 174.

INT(x)

Greatest integer less than or equal to x.

INV(x)

Inverse of x; 1/x.

IP(x)

Integer part of x.

ITEM(SUM-listname:item#)

Value of the specified SUM-list item.

LN(x)

Natural (base e) log of x.

LNP1(x)

In (1 + x)

LOG(x)

Common (base 10) log of x.

MAX(x:y)

Compares x and y, and returns the

MIN(x:y)

larger of the two.

Compares x and y, and returns the

MOD(x:y)

smaller of the two.

Remainder of the division x/y.

 

MOD(x,y) = x－y x INT(x/y)

PI

π ; 3.14159265359 (12 digits).

RND(x:y)

Rounds x to y decimal places if 0 ≤ y ≤

 

11, or rounds x to y significant digits if

 

－12 ≤ y ≤－1. y must be an integer.

S(variable name)

Used in an IF function to test if solving

 

for the variable named. Used to

 

combine related equations into one

 

Solver menu. See page 178.

SGN(x)

Sign of x (＋1 if x > 0, 0 if x＝0, －1 if

 

x < 0.

170 12: The Equation Solver

File name : 17BII-Plus-Manual-E-PRINT-030709

Print data : 2003/7/11