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This function returns the result of the natural logarithm (reverse function for the natural exponential function 'exp'). |
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Syntax: |
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{INT_VAR|FLO_VAR}= ln({NUM_EXPR}) | |||||||
I/O parameters:
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Return value: |
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Example: |
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Declaration of Variables | |||||||
10 ask(DOCU_FLOAT_1,"Please enter a value!") 20 DOCU_FLOAT_2 = ln(DOCU_FLOAT_1) 30 put(DOCU_FLOAT_2) |
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Result: (For DOCU_FLOAT_1 = 1,2) | |||||||
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In order to prevent errors, the float/double type must be used if results can be expected to be either very large or very small (<2^-31 or > 2^31). | ||||||
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Functions and commands: Mathematics |