如题:0.4*log2(0.4)怎么算 等于多少?

问题描述:

如题:0.4*log2(0.4)怎么算 等于多少?

=0.4*ln0.4/ln2=0.4*(-0.91629073187415506518352721176801)/0.69314718055994530941723212145818=-0.52877123795494493914812777179576