桹Υߥ졼 exp(double) Ȥ꤬褦ǤϤޤϤ
Ƥޤ󡣤θݤϡRussell King 󶡤륨ߥ졼Ǥȯޤ

ߥ졼˰Ĥ̯ȯޤ줬Ȥ
פʤΤǤŦƤޤARM δؿƽФ˽Ȥȡ
ؿƽФˤư쥸 f4  f7 򤷤Ƥɬפޤ
ξ硢ѥϴؿ stfe ̿Ȥä f4 򥹥å¸
ؿ ldfe ̿ȤäƤޤ

 (double) η̤׻륳ɤįƤΤǤǤϡ̤
f4 ˳Ǽ줫ؿƽФ򤪤ʤäƤޤơߥ졼Ǥϡ
ؿƽФäƤȤ f4 οͤĥͤؤѴƤޤ

 stfe ̿ѤǤf4 ͤϡĥͤѴƤǼ
ɬפäΤǤ⤷ lfm/sfm ȤȤƤʤСѴȯ
ʤäǤ礦ϥѥեޥ󥹤θΤǤؿƽФη̤
f4 ϳݻѤƤޤͤȳĥͤǳݻʤ硢
ߥ졼ϡͤĥͤؤȳʾ夲줫ĥ٤ǳݻ
ʤ褦ˤʤäƤޤ

ΥɤϾ嵭ȯޤ

double x, y, z;
z = log(x)/log(y);

log(x) η׻ ()  f0 ֤졢θ log(y) θƽФΩäơ
ͤ򤹤뤿 f4 ˤͤưޤlog(y)  f4 ¸
 stfe ̿᤬ȤΤǡ任ϳĥ٤Ǽ¹ԤƤޤޤ
