progress-4gl Working with numbers More mathematical functions

Example

EXP - Returns the result of raising a number to a power.

EXP( base, exponent)

MESSAGE EXP(10, 2) VIEW-AS ALERT-BOX. // Messages 100

SQRT - Returns the square root of a number.

SQRT( number)

MESSAGE "The square root of 256 is " SQRT(256) VIEW-AS ALERT-BOX. // Messages 16

MODULO - Determines the remainder after division.

expression MODULO base

DISPLAY 52 MODULO 12. //Displays 4

ROUND - Rounds a decimal expression to a specified number of places after the decimal point.

ROUND( number, precision)

DISPLAY ROUND(67.12345, 6) FORMAT "99.99999". // 67.12345
DISPLAY ROUND(67.12345, 5) FORMAT "99.99999". // 67.12345
DISPLAY ROUND(67.12345, 4) FORMAT "99.99999". // 67.12350
DISPLAY ROUND(67.12345, 3) FORMAT "99.99999". // 67.12300
DISPLAY ROUND(67.12345, 2) FORMAT "99.99999". // 67.12000
DISPLAY ROUND(67.12345, 1) FORMAT "99.99999". // 67.10000
DISPLAY ROUND(67.12345, 0) FORMAT "99.99999". // 67.00000

TRUNCATE Truncates a decimal expression to a specified number of decimal places, returning a decimal value.

TRUNCATE( number, places)

DISPLAY TRUNCATE(67.12345, 6) FORMAT "99.99999". // 67.12345
DISPLAY TRUNCATE(67.12345, 5) FORMAT "99.99999". // 67.12345
DISPLAY TRUNCATE(67.12345, 4) FORMAT "99.99999". // 67.12340
DISPLAY TRUNCATE(67.12345, 3) FORMAT "99.99999". // 67.12300
DISPLAY TRUNCATE(67.12345, 2) FORMAT "99.99999". // 67.12000
DISPLAY TRUNCATE(67.12345, 1) FORMAT "99.99999". // 67.10000
DISPLAY TRUNCATE(67.12345, 0) FORMAT "99.99999". // 67.00000

ABSOLUTE - Returns the absolute value of a number

DISPLAY ABS(10 - 12). //Displays 2
DISPLAY ABS(-2) = ABS(2). //Displays yes

MINIMUM and MAXIMUM - returns the smalles and largest number

MINIMUM(number1, number2, ... numbern)

MAXIMUM(number1, number2, ... numbern)

DEFINE VARIABLE i AS INTEGER     NO-UNDO.
DEFINE VARIABLE j AS INTEGER     NO-UNDO.
DEFINE VARIABLE k AS INTEGER     NO-UNDO.

i = 40.
j = 45.
k = 56.

DISPLAY MINIMUM(i, j, k) MAXIMUM(i, j, k). // Displays 40 and 56