ElectricalMath on Instagram: "Proving that the volume of a pyramid is 1/3 its base area * height. In general, the volume of a solid is the product of its cross-sectional area and length. But a pyramid’s cross section is not uniform — it varies from zero at the peak to maximum at the base. So, we’ll have to consider the average cross-sectional area. However, the average cross-sectional area is NOT half the base area! This would only be true if the cross section were varying linearly, and, althoug

录题——辛普森公式与复化梯形公式估计积分值(数值分析)