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How to Compute Logarithms in GeoGebra

Use CAS mode in GeoGebra to compute logarithms.

For the common logarithm, you can choose between the commands lg(<x>), log(<x>) or log10(<x>).

For the natural logarithm, the command is ln(<x>).

GeoGebra Instruction 1

1.
Open CAS under GeoGebra icon View in GeoGebra icon Menu.
2.
Enter your expression in CAS using the commands detailed above. Press Enter or Numeric Evaluation GeoGebra icon.

Screenshot of GeoGebra showing the common and natural logarithm of 45

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