power (calc-2.12.7.2.tar.bz2) | : | power (calc-2.12.7.6.tar.bz2) | ||
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NAME | NAME | |||

power - evaluate a numerical power to specified accuracy | power - evaluate a numerical power to specified accuracy | |||

SYNOPSIS | SYNOPSIS | |||

power(x, y, [, eps]) | power(x, y, [, eps]) | |||

TYPES | TYPES | |||

x number | x number | |||

x number | y number | |||

eps nonzero real, defaults to epsilon() | eps nonzero real, defaults to epsilon() | |||

return number | return number | |||

DESCRIPTION | DESCRIPTION | |||

For real or complex x and y, power(x,y,eps) returns a real or | For real or complex x and y, power(x,y,eps) returns a real or | |||

complex number for which the real and imaginary parts are multiples | complex number for which the real and imaginary parts are multiples | |||

of epsilon differing from the true real and imaginary parts of the | of epsilon differing from the true real and imaginary parts of the | |||

principal y-th power of x by less than 0.75 * abs(eps), usually by | principal y-th power of x by less than 0.75 * abs(eps), usually by | |||

less than 0.5 * abs(eps). If the principal y-th power of x is a | less than 0.5 * abs(eps). If the principal y-th power of x is a | |||

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