tgφ...cosφ0.000.100.200.300.400.500.600.700.800.901.000.001.0000.9950.9810.9580.9290.8950.8580.8190.7810.7430.7070.010.9990.9940.9790.9550.9250.8910.8540.8150.7770.7390.7040.020.9990.9930.9770.9520.9220.8870.8500.8120.7730.7360.7000.030.9990.9920.9750.9500.9190.8840.8420.8080.7690.7320.6970.040.9990.9900.9720.9470.9150.8800.8400.8040.7650.7280.6930.050.9990.9890.9700.9440.9120.8760.8380.8000.7620.7250.6900.060.9980.9870.9680.9410.9090.8730.8340.7960.7580.7220.6860.070.9980.9860.9660.9380.9050.8690.8310.7920.7540.7180.6830.080.9970.9840.9630.9350.9010.8650.8270.7890.7500.7140.6790.090.9960.9820.9610.9320.8980.8610.8230.7850.7460.7100.676查表方法：根据无功电度Q和有功电度P的比值算出功率因数角φ的正切值tgφ，即Q/P=tgφ。 然后，根据tgφ查表得出功率因数cosφ。
cosφ速查表
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