hp40g+.book Page 16 Friday, December 9, 2005 1:03 AM

 

Example

 

9 MOD 4 returns 1

%

x percent of y; that is, x/100*y.

 

%(x, y)

 

Example

 

%(20,50) returns 10

%CHANGE

Percent change from x to y, that is, 100(y–x)/x.

 

%CHANGE(x, y)

 

Example

 

%CHANGE(20,50) returns 150

%TOTAL

Percent total : (100)y/x. What percentage of x, is y.

 

%TOTAL(x, y)

 

Example

 

%TOTAL(20,50) returns 250

RAD→DEG

Radians to degrees. Converts value from radians to

 

degrees.

 

RAD→DEG (value)

 

Example

 

RAD→DEG(π) returns 180

ROUND

Rounds value to decimal places. Accepts complex

 

numbers.

 

ROUND(value, places)

 

Round can also round to a number of significant digits as

 

showed in example 2.

 

Examples

 

ROUND(7.8676,2) returns 7.87

 

ROUND (0.0036757,-3) returns 0.00368

SIGN

Sign of value. If positive, the result is 1. If negative, –1. If

 

zero, result is zero. For a complex number, this is the unit

 

vector in the direction of the number.

 

SIGN(value)

 

SIGN((x, y))

13-16

 

 

Using mathematical functions