→ suker :拆絕對值考慮ax^2 >=68.6872[cosh(...)-1] 2種情況 12/30 13:04
→ suker :若>= ;a*x^3/3 -68.6872*sinh[kx]/k +66.6872 12/30 13:05
→ suker :k=3.0022/299.2239 比較好打 12/30 13:06
→ suker :若< 68.6872*sinh[kx]/k -66.6872 -ax^3/3 12/30 13:07
→ suker :∫cosh[k*x]dx=sinh[kx]/k +C 12/30 13:07
推 G41271 :自己練習用數學軟體積 12/30 13:37
→ doublelll :哪裡可以找到積分軟體?= = 12/30 16:39