HP 39g Graphing Calculator Guida Utente Pagina 153

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Using mathematical functions 10-17
MOD Modulo. The remainder of value1/value2.
value1 MOD value2
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
RADDEG Radians to degrees. Converts value from radians to degrees.
RADDEG (value)
Example
RADDEG(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 7.68
ROUND (0.0036757,-3) returns 0.00368
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