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<!DOCTYPE html>
<link rel="help" href="https://drafts.csswg.org/css-values-4/#exponent-funcs">
<link rel="help" href="https://drafts.csswg.org/css-values-4/#numbers">
<link rel="help" href="https://drafts.csswg.org/css-values-4/#calc-type-checking">
<link rel="author" title="Apple Inc">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../support/numeric-testcommon.js"></script>
<div id="target"></div>
<script>
// Simple tests
test_math_used('log(1)', '0', {type:'number'});
test_math_used('log(10, 10)', '1', {type:'number'});
test_math_used('exp(0)', '1', {type:'number'});
// Test e
test_math_used('calc(log(e) )', '1', {type:'number', approx:0.1});
test_math_used('calc(e - exp(1))', '0', {type:'number', approx:0.1});
//General calculations
test_math_used('calc(log( 1 + 1 + 2 /2 - 2) )', '0', {type:'number', approx:0.1});
test_math_used('calc(log(1) + exp(0))', '1', {type:'number', approx:0.1});
test_math_used('calc(exp(log(1) + exp(0)*2))', '7.4', {type:'number', approx:0.1});
test_math_used('calc(log(log(1) + exp(0)*10))', '2.3', {type:'number', approx:0.1});
test_math_used('calc(log(log(1) + exp(0)*20, 10))', '1.3', {type:'number', approx:0.1});
test_math_used('calc(log(e) / log(e) + exp(0)*2 * log(e))', '3', {type:'number', approx:0.1});
test_math_used('calc(log((1 + 1) /2) / log(e) + exp(0*1)*2 * log(e))', '2', {type:'number', approx:0.1});
test_math_used('calc(log((3 + 1) /2, 2) / log(e) + exp(0*1)*2 * log(e))', '3', {type:'number', approx:0.1});
test_math_used('calc(log((3 + 1) /2, 2) / log(e, e) + exp(0*1)*2 * log(e, e))', '3', {type:'number', approx:0.1});
test_math_used('calc(exp(0) + 1)', '2', {type:'number', approx:0.1});
// Test unresolved at parse time
test_math_used('calc(e - exp(sibling-index()))', '0', {type:'number', approx:0.1});
test_math_used('calc(log(exp(2 * sibling-index())))', '2', {type:'number', approx:0.1});
// Test nesting
test_math_used('calc(log(exp(1)))', '1', {type:'number', approx:0.1});
test_math_used('calc(log(exp(log(e))))', '1', {type:'number', approx:0.1});
</script>
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