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#### 2.7.58 Programming Tutorial Exercise 1

Just enter the formula ‘`ninteg(sin(t)/t, t, 0, x)`’, type `Z F`, and answer the questions. Since this formula contains two variables, the default argument list will be ‘`(t x)`’. We want to change this to ‘`(x)`’ since ‘`t`’ is really a dummy variable to be used within `ninteg`.

The exact keystrokes are `Z F s Si RET RET C-b C-b DEL DEL RET y`. (The `C-b C-b DEL DEL` are what fix the argument list.)