log Example
10 CLEAR SCREEN
20 IF LOG(EXP(65))<>65 THEN PRINT "Test failed."
30 RAD ! Complex calculations are always done in radians!
40 COMPLEX C
50 C=CMPLX(4,7)
60 X=REAL(LOG(C))
70 Y=LOG(ABS(C))
80 PRINT X;"=";Y;"?"
90 IF X=Y THEN
100 PRINT "True"
110 ELSE
120 PRINT "False - error in documentation."
130 END IF
140 X=IMAG(LOG(C))
150 Y=ARG(C)
160 PRINT X;"=";Y;"?"
170 IF X=Y THEN
180 PRINT "True"
190 ELSE
200 PRINT "False - error in documentation."
210 END IF
220 END
