eval
, deval
deval
returns
double float. Rational numbers remain unchanged in results from eval
.
eval
the computation is done
by PARI (See section pari
). In deval
the computation is
done by the C math library.
deval
cannot handle complex numbers.
setprec
)
sin
, cos
, tan
,
asin
, acos
, atan
,
sinh
, cosh
, tanh
,
asinh
, acosh
, atanh
,
exp
, log
, pow(a,b) (a^b)
@i
cannot be handled by deval
.
[118] eval(exp(@pi*@i)); -1.0000000000000000000000000000 [119] eval(2^(1/2)); 1.414213562373095048763788073031 [120] eval(sin(@pi/3)); 0.86602540378443864674620506632 [121] eval(sin(@pi/3)-3^(1/2)/2,50); -2.78791084448179148471 E-58 [122] eval(1/2); 1/2 [123] deval(sin(1)^2+cos(1)^2); 1
ctrl
, section setprec
, section pari
.
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