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我想比較兩個浮點數,如果它更大,設置tempdiffer不同,但它總是以最後的函數值結束。這是非常基本的,但它沒有設置不同的最高價值。任何人都可以將我指向正確的方向嗎?比較兩個浮動不工作楓葉18
with(orthopoly):
chebpade(BesselJ(1, x), x = -1 .. 1, [3, 4]):
Ttest := subs(T = orthopoly[T], chebpade(BesselJ(0, x), x = -1 .. 1, [3, 4])):
plot([Ttest, BesselJ(0, x)], x = -1 .. 1);
b := evalf(subs(x = -1, BesselJ(0,x))):
t := evalf(subs(x = -1, Ttest)):
differ := abs(t-b/t):
for i from -1 by 1 to 1 do
b := evalf(subs(x = i, BesselJ(0,x))):
t := evalf(subs(x = i, Ttest)):
tempdiffer := abs(t-b/t):
if tempdiffer > differ then
differ := tempdiffer;
end if:
end do;