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World of Education
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FUNCTION.LI
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1992-03-09
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300b
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14 lines
define(log10(x)=ln(x)/ln(10))
define(erfc(x)=1-erf(x))
define(acot(x)=atan(1/x))
define(asec(x)=acos(1/x))
define(acsc(x)=asin(1/x))
define(asinh(x)=ln(x+sqrt(x^2+1)))
define(acosh(x)=ln(x+sqrt(x^2-1)))
define(atanh(x)=0.5*ln((1+x)/(1-x)))
define(asech(x)=ln((1+sqrt(1-x^2)/x)))
end