| 1 | # Do the exponential cosine function.
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| 2 |
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| 3 |
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| 4 |
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| 5 | Eval_expcos = ->
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| 6 | push(cadr(p1))
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| 7 | Eval()
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| 8 | expcos()
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| 9 |
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| 10 | expcos = ->
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| 11 | save()
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| 12 |
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| 13 | p1 = pop()
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| 14 |
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| 15 | push(imaginaryunit)
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| 16 | push(p1)
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| 17 | multiply()
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| 18 | exponential()
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| 19 | push_rational(1, 2)
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| 20 | multiply()
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| 21 |
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| 22 | push(imaginaryunit)
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| 23 | negate()
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| 24 | push(p1)
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| 25 | multiply()
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| 26 | exponential()
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| 27 | push_rational(1, 2)
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| 28 | multiply()
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| 29 |
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| 30 | add()
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| 31 |
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| 32 | restore()
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| 33 |
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| 34 |
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