Returns the base-10 logarithm of a complex number.

inumberThe complex number you want the common logarithm of.

* If "inumber" is not in the form x + yi or x + yj, then #NUM! is returned.
* You can use the IMLN function to return the natural logarithm of a complex number.
* You can use the IMLOG2 function to return the base-2 logarithm of a complex number.
* You can use the COMPLEX function to convert real and imaginary coefficients into a complex number.
* For the Microsoft documentation refer to
* For the Google documentation refer to

1=IMLOG10("3+4i") = 0.698970004336019+0.402719196273373i
2=IMLOG10("3+4j") = 0.698970004336019+0.402719196273373j
3=IMLOG10("4j") = 0.602059991327962+0.682188176920921j
4=IMLOG10("4") = 0.602
5=TEXT(IMLOG10("4"), "0.000") = 0.602
6=IMLOG10("some text") = #NUM!

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