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stdev


Standard deviation

Calculates the population standard deviation of a set of numbers. Return symbolic function of median cannot be calculated.

Usage: nerdamer("stdev(... args)")


Parameters

expression | expression[] args A variable number of arguments

Returns

Expression

EXAMPLES:
var x = nerdamer('stdev(4,2,5,4)').evaluate();
console.log(x.text());
x = nerdamer('stdev([4,2,5])');
console.log(x.toString());
x = nerdamer.stdev('x', 'r+1', '21', 'tan(x)', 'r+1');
console.log(x.toString());
x = nerdamer.stdev('11', '12', '13', '14').evaluate();
console.log(x.text());
OUTPUT:
1.089724735885168411
(1/3)*sqrt(14)
(39088169/87403803)*sqrt(((-1/5)*tan(x)+(-1/5)*x+(-2/5)*r+82/5)^2+((-1/5)*tan(x)+(-2/5)*r+(4/5)*x-23/5)^2+((-1/5)*x+(-2/5)*r+(4/5)*tan(x)-23/5)^2+2*((-1/5)*tan(x)+(-1/5)*x+(3/5)*r-18/5)^2)
1.118033988749894919
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