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sqrt
sqrt

sqrt (x)
sqrt (x)

sqrt( 9) ίσον 3
sqrt(9) equals 3

Ν-οστή ρίζα - \\sqrt[]{}
n-th root - \\sqrt[]{}

sqrt (- 9) επιστρέφει ένα σφάλμα
sqrt(-9) is an error

Αν το @{x} είναι αρνητικό, η συνάρτηση sqrt επιστρέφει #ΑΡΙΘ!
if @{x} is negative, sqrt returns #num!

Η συνάρτηση sqrt () επιστρέφει τη μη αρνητική τετραγωνική ρίζα της παραμέτρου. Επιστρέφει ένα σφάλμα αν η παράμετρος είναι αρνητική.
the sqrt() function returns the non-negative square root of the argument. it is an error if the argument is negative.

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abs, ceil, ceiling, count, counta, countblank, countif, cur, div, eps, even, exp, fact, factdouble, fib, floor, gamma, gcd, g_product, int, inv, kproduct, lcm, ln, log, log10, log2, logn, max, maxa, mdeterm, min, mina, minverse, mmult, mod, mround, multinomial, multiply, munit, odd, pow, power, product, quotient, rand, randbernoulli, randbetween, randbinom, randexp, randnegbinom, randnorm, randpoisson, rootn, round, rounddown, roundup, seriessum, sign, sqrt, sqrtpi, subtotal, sum, suma, sumif, sumsq, transpose, trunc